“Oh what idiots we have all been, this is just as it must be.”

In our description of nature the purpose is not to disclose the real essence of the phenomena but only to track down, so far as it is possible, relations between the manifold aspects of our experience.

If you have a correct statement, then the opposite of a correct statement is of course an incorrect statement, a wrong statement. But when you have a deep truth, then the opposite of a deep truth may again be a deep truth.

What is that we human beings ultimately depend on? We depend on our words. We are suspended in language. Our task is to communicate experience and ideas to others.

The meaning of life consists in the fact that it makes no sense to say that life has no meaning.

The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.

It is a great pity that human beings cannot find all of their satisfaction in scientific contemplativeness.

There are two sorts of truth: trivialities, where opposites are clearly absurd, and profound truths, recognised by the fact that the opposite is also a profound truth.

If an idea does not appear bizarre, there is no hope for it.

How wonderful that we have met with a paradox. Now we have some hope of making progress.

Address to Albert Einstein: You are not thinking. You are merely being logical.

When it comes to atoms, language can be used only as in poetry.

There are some things so serious you have to laugh at them.

One must always do what one really cannot.

There is no hope for any speculation that does not look absurd at first glance.

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.

Drugs are for idiots. I’m never going to be that person.

A man that extols himself is a fool and an idiot.

One or two years ago, I didn’t know who I was on court and I used to swear a lot. But now I’ve learned how to cope and can therefore win 10 matches in a row. I want to be remembered as a good player rather than an idiot on court.

Extremism is so easy. You’ve got your position, and that’s it. It doesn’t take much thought. And when you go far enough to the right you meet the same idiots coming around from the left.

An ancient tradition declares that every idiot blunder we pass into law will sooner or later redound to Athens’ profit.

Only idiots refuse to change their minds.

What a terrible era in which idiots govern the blind.

There is a Providence that protects idiots, drunkards, children and the United States of America.