We humans can look deep into future and predict what will happen, but then turn around and do nothing about it.

Our brain accepts what the eyes see and our eye looks for whatever our brain wants.

When we have an experience -- hearing a particular sonata, making love with a particular person, watching the sun set from a particular window of a particular room -- on successive occasions, we quickly begin to adapt to it, and the experience yields less pleasure each time. Psychologists call this habituation, economists call it declining marginal utility, and the rest of us call it marriage

Research suggests that people are typically unaware of the reasons why they are doing what they are doing, but when asked for a reason, they readily supply one.

Because your brain uses information from the areas around the blind spot to make a reasonable guess about what the blind spot would see if only it weren't blind, and then your brain fills in the scene with this information. That's right, it invents things, creates things, makes stuff up! It doesn't consult you about this, doesn't seek your approval. It just makes its best guess about the nature of the missing information and proceeds to fill in the scene.

People are happiest when they're trying to achieve goals that are difficult but not out of reach.

The word happiness is used to indicate at least three related things, which we might roughly call emotional happiness, moral happiness, and judgmental happiness.