We tend to think that...

We tend to think that what we think is true. And because we think something is true, we ignore information that might tell us it’s not true.

Charles Darwin deliberately looked for thoughts that disagreed with his own. He wrote, “whenever a published fact, a new observation or thought came across me, which was opposed to my general results, to make a memorandum of it without fail and at once; for I had found by experience that such facts and thoughts were far more apt to escape from memory than favorable ones.” Darwin was out for truth, not to confirm his view of the world.

“If someone is able to show me that what I think or do is not right, I will happily change,” Marcus Aurelius said. “For I seek the truth, by which no one ever was truly harmed. Harmed is the person who continues in his self-deception and ignorance.”