The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we may make no a priori assumptions about the meaning of the word understand.

Not only is the Universe stranger than we think, it is stranger than we can think.

The world thus appears as a complicated tissue of events, in which connections of different kinds alternate or overlap or combine and thereby determine the texture of the whole.

There are things that are so serious that you can only joke about them.

The very act of observing disturbs the system.

Every word or concept, clear as it may seem to be, has only a limited range of applicability.

Nature is made in such a way as to be able to be understood. Or perhaps I should put it-more correctly-the other way around, and say that we are made in such a way as to be able to understand Nature.