I have become rather like King Midas, except that everything turns not into gold but into a circus.

The unleashed power of the atom has changed everything except our thinking. Thus, we are drifting toward catastrophe beyond conception. We shall require a substantially new manner of thinking if mankind is to survive.

Try not to become a man of success, but a man of value. Look around at how people want to get more out of life than they put in. A man of value will give more than he receives. Be creative, but make sure that what you create is not a curse for mankind.

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

I have become an obstinate heretic in the eyes of my colleagues. Momentary success carries more power of conviction than reflections upon principles.

A person starts to live when he can live outside himself.

I want to know all God's thoughts.