Amos Tversky

My colleagues, they study artificial intelligence. Me, I study natural stupidity.

People don't think in terms of probabilities; they think in terms of possibilities.

The difference between a good and a bad decision is not whether it has a good or bad outcome. It's whether it was made using a good process.

Sometimes, when you are in a situation where you have to make a decision, you don't know what the problem is until you have a solution.

No one ever made a decision because of a number. They need a story.

The secret to doing good research is always to be a little underemployed. You waste a lot of time in research if you're not a little underemployed. You should not work at your maximum capacity, because you will not have any new ideas.

The most important thing is to ask the right question.

When you're a hammer, everything looks like a nail.

The problem is not that people are stupid; it's that they are too smart for their own good.

The human mind is a wonderful thing. It starts working the moment you're born and never stops until you stand up to speak in public.

It's very hard to predict, especially the future.

The main thing is to keep the main thing the main thing.

People are not irrational, they are predictably irrational.

The greatest discoveries are often made by asking the right questions, not by finding the right answers.

The world is not as random as we think it is, and it's not as predictable as we'd like it to be.

We are not rational agents; we are intuitive statisticians.

The most important thing is to be able to change your mind.

The problem with common sense is that it's not very common.

The only way to do great work is to love what you do.

The mind is not a blank slate; it's a messy desk.