What I see in Nature is a grand design that we can understand only imperfectly, one with which a responsible person must look at with humility.

Small is the number of people who see with their eyes and think with their minds.

Imagination is everything. It is the preview of life's coming attractions.

I never think of the future. It comes soon enough. When visiting the U.S. from Germany for a winter academic stay.

An attempt at visualizing the Fourth Dimension: Take a point, stretch it into a line, curl it into a circle, twist it into a sphere, and punch through the sphere.

Most people go on living their everyday life: half-frightened, half indifferent, they behold the ghostly tragic-comedy that is being performed on the international stage before the eyes and ears of the world.

My life is a simple thing that would interest no one. It is a known fact that I was born, and that is all that is necessary.