People are one of the most important sources of information available to us. Much of what we know about the world comes from other people. We learn from our parents, teachers, friends, scientists, historians, journalists, coworkers, and countless strangers whose words reach us through books, television, and the internet.
Yet trusting a person as a source of information requires careful judgment.
We should neither blindly trust people nor blindly distrust them. Instead, we should evaluate both the person providing the information and the information itself.
In order to evaluate a person as a source of information with rationality, we can begin by asking:
"Has this person given me a reason to believe that they may be dishonest?"
If we have no reason to suspect dishonesty, we can continue listening with an open mind. If a person has demonstrated dishonesty in the past, we should take that history into consideration, but we should not automatically conclude that everything the person says in the future is false.
Past dishonesty can provide a reason for increased skepticism, but it does not logically prove that the person's next statement is dishonest. Likewise, a person who has consistently told the truth has earned a greater degree of trust, but their history does not guarantee that their next statement will be true.
Therefore, we should distinguish between trusting a person and accepting a statement.
A trustworthy person can be mistaken.
An untrustworthy person can sometimes tell the truth.
A person can honestly communicate information that they themselves incorrectly believe to be true.
And a person can deliberately communicate something false.
For this reason, evaluating the truth of a statement requires more than evaluating the character of the person who made it.
Who Are You?
Some people may be inclined to trust or distrust another person based on appearance alone. But appearance tells us very little about whether a person's information is accurate.
A person's clothing, age, physical appearance, social status, confidence, popularity, or manner of speaking should not be treated as proof of the truth of what they say.
The evaluation of a person as a source of information takes time.
When we encounter someone whose reliability we do not yet know, an important question to ask is:
"Who are you?"
We may not initially know the answer. But as we learn about a person, we can develop a more informed understanding of their reliability.
We can consider their past behavior, their knowledge and experience, whether they distinguish facts from opinions, whether they acknowledge their mistakes, whether they provide evidence for their claims, and whether their statements can be independently verified.
Over time, a person can develop a record of providing accurate or inaccurate information.
However, even an excellent record should not cause us to abandon our own ability to think critically.
A source can deserve our trust without deserving our unquestioned belief.
Trust the Person, Examine the Information
One of the most important principles in evaluating people as sources of information is this:
We should evaluate the credibility of the person separately from the truth of the statement.
Suppose a person has given us ten accurate pieces of information. We have good reason to regard that person as a reliable source. But when the person gives us an eleventh statement, we should still ask whether that particular statement is supported by sufficient evidence.
Likewise, suppose someone has previously lied to us. We should remember that history when evaluating their future statements, but we should not automatically assume that their next statement is false.
This allows us to avoid two opposite mistakes:
Blind trust: "This person is trustworthy, so everything they say must be true."
Blind distrust: "This person has lied before, so everything they say must be false."
The rational position lies between these extremes.
We should allow a person's history to influence our degree of trust, while allowing the evidence for each individual claim to influence our degree of belief.
Things to Consider When Judging a Person as a Source of Information
When evaluating a person as a source of information, we can ask:
1. What do I know about this person?
What is their history? What do they know? What experience do they have? Have they demonstrated reliability?
2. Has this person given me a reason to believe that they may be dishonest?
Have they lied, deliberately misled others, concealed important information, or demonstrated a pattern of dishonesty?
3. Has this person demonstrated that they are willing to admit mistakes?
A person who can acknowledge being wrong may provide more reason for trust than someone who refuses to reconsider any of their beliefs.
4. Does this person provide evidence for their claims?
Are they asking us merely to believe them, or are they giving us reasons to believe what they say?
5. How does my perception of this person change as I learn more about them?
Our initial impression may be incomplete. As we learn more, our assessment should be allowed to change.
6. If this person has been correct many times, am I treating their reliability as a guarantee?
A strong record can increase our confidence in a person, but it cannot guarantee that every future statement will be correct.
7. Can the information be independently verified?
Whenever possible, we should determine whether other evidence supports the person's statement.
Listen With Open Ears Without Immediately Accepting
One of the most useful habits in the pursuit of knowledge is learning to entertain a thought without accepting it as true.
We can listen carefully to an idea without immediately believing it.
This allows us to investigate information without prematurely accepting or rejecting it.
When someone tells us something unfamiliar, we can temporarily hold the idea in our minds and ask:
"Could this be true?"
Then we can investigate.
This is a more useful approach than immediately responding with either:
"I believe you."
or
"I don't believe you."
The first response may lead to blind acceptance. The second may cause us to reject information before we have properly examined it.
The better response is often:
"I will consider what you have said, and I will determine whether the evidence supports it."
Ask Questions
To understand information more deeply, we should ask questions.
We can ask:
"What is this?"
"What do you mean?"
"How do you know?"
"Why?"
"What evidence supports this?"
"Could there be another explanation?"
Questions allow us to move beyond the surface of a statement and investigate what lies underneath it.
When we ask someone to explain the meaning of their words, we may discover that we initially misunderstood them. A statement that sounded one way may have been intended another way.
This is especially important because people communicate through more than literal words.
People use metaphors, humor, sarcasm, exaggeration, figures of speech, and emotional expressions. Therefore, understanding another person's words sometimes requires understanding the context and intention behind them.
The literal words alone would therefore not fully communicate the meaning.
Ask "Why?"
The question "Why?" is one of the most powerful questions available to the human mind.
When someone performs an action, we can ask:
"Why did they do this?"
When someone makes a statement, we can ask:
"Why do they believe this?"
When someone gives us information, we can ask:
"Why are they telling me this?"
Asking why can reveal motives, assumptions, causes, and perspectives that are not immediately visible.
However, we should be careful when attempting to determine another person's motives. We cannot directly enter another person's mind, and we should not treat our interpretation of their motives as established fact.
Instead, we should consider the person's circumstances, experiences, goals, beliefs, and perspective and then form a tentative explanation.
We should remember that two people can observe the same event and interpret it differently. They can have different experiences, different assumptions, different values, and different understandings of the same words.
Understanding these differences can help us understand not only what another person believes, but why they believe it.
Listen to the Meaning Behind the Words
Communication involves more than vocabulary.
A person's tone of voice, facial expression, timing, emphasis, and surrounding circumstances can sometimes provide information about the meaning they intend to convey.
Therefore, when listening to someone, we should pay attention not only to what they say but also to how they say it.
However, these signals should be treated as clues rather than proof.
A person's tone may suggest anger, sadness, excitement, sarcasm, or uncertainty, but we should not assume that we know their internal state merely from their voice.
When the meaning is uncertain, the best method is often simply to ask:
"What did you mean by that?"
Asking can prevent us from turning an interpretation into an assumption.
What Should We Believe?
We should not determine the truth of information solely by deciding whether we like or trust the person who provided it.
Instead, we should consider what can reasonably be established from the available evidence.
Some information can be confirmed through direct observation. Other information can be established through reliable records, measurements, experiments, documents, testimony, mathematical reasoning, or multiple independent sources.
Therefore, we should not limit knowledge only to what we personally see with our own eyes. Much of what we reasonably know about the world comes from evidence that we cannot personally observe.
The important question is not:
"Did I personally see it?"
The better question is:
"What evidence gives me good reason to believe it?"
This distinction allows us to benefit from the knowledge of other people without surrendering our own ability to evaluate information.
The Goal of Trust
The goal of this model is not to teach us to distrust everyone.
Human beings depend upon one another for knowledge. No individual can personally investigate everything that needs to be known. We rely on other people because our ability to understand the world is greatly expanded when we can learn from the experiences, observations, and expertise of others.
The goal is therefore informed trust.
We can trust people while remaining intellectually independent.
We can respect expertise without treating experts as infallible.
We can remember a person's history without allowing that history to determine the truth of every future statement.
And we can change our assessment of a person as new evidence about their reliability becomes available.
Ultimately, the most rational approach to information from other people is neither blind trust nor blind suspicion.
It is open-minded examination.
Listen with open ears.
Ask questions.
Seek clarification.
Consider the person's perspective.
Examine their history.
Look for evidence.
Verify important claims when possible.
And, most importantly, never surrender your own ability to think critically.
A person can be an excellent source of information without being an infallible source of truth.
The wise mind therefore does not ask only, "Do I trust this person?"
It asks the deeper question:
"What reason do I have to believe what this person has told me?"
© 2026 Hazon, Nir
