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

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.

If we couldn’t laugh at ourselves, that would be the end of everything.

An expert is a man who has made all the mistakes which can be made, in a narrow field.

Physics is the belief that a simple and consistent description of nature is possible.

All bad precedents begin as justifiable measures.

A man’s friendships are one of the best measures of his worth.

I measure the progress of a community by the degree of progress which women have achieved.

Do not measure yourself by success, failure, or a degree. Measure your life by the dreams you have.

Always demanding the best of oneself, living with honor, devoting one’s talents and gifts to the benefits of others – these are the measures of success that endure when material things have passed away.

The greatest measure of a man is the health and happiness of his family.

What you measure affects what you do. If you don’t measure the right thing, you don’t do the right thing.

As for poverty, no one need be ashamed to admit it, the real shame is in not taking practical measures to escape from it.