I have remained a simple fellow who asks nothing of the world; only my youth is gone - the enchanting youth that forever walks on air.

Formerly, people thought that if matter disappeared from the universe, space and time would remain. Relativity declares that space and time would disappear with matter.

Memory is deceptive because it is colored by today's events.

In scientific thinking are always present elements of poetry. Science and music requires a thought homogeneous.

There is separation of colored people from white people in the United States. That separation is not a disease of colored people. It is a disease of white people. I do not intend to be quiet about it.

We all try to escape pain and death, while we seek what is pleasant.

Do you really believe that the moon isn’t there when nobody looks?