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

The great extension of our experience in recent years has brought light to the insufficiency of our simple mechanical conceptions and, as a consequence, has shaken the foundation on which the customary interpretation of observation was based.

A person who wasn’t outraged on first hearing about quantum theory didn’t understand what had been said.

The measurement we get when we measure something is not a property of the thing measured.

If you think you understand it, that only shows that you don’t know the first thing about it.

I go into the Upanishads to ask questions.

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.

You rarely win, but sometimes you do.

I made a resolve then that I was going to amount to something if I could. And no hours, nor amount of labor, nor amount of money would deter me from giving the best that there was in me. And I have done that ever since, and I win by it. I know.

I play a tug of war with the universe to keep you.

My sky is too blue for me to be scared of people painting it a little grey.

Events of human origin are uncertain, but all is regulated and governed by the incalculable power of God, inspiring us not through drunken fury nor by frantic movement, but through the influences of the stars.

God hasn’t made anything yet you couldn’t conquer.

There’s only one way to make a beginning, and that is to begin; and begin with hard work, and patience, prepared for all the dissapoint­ments.

I know my body. I know my mind. I know what I can do.