I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance [spukhafte Fernwirkungen].

Have the courage to take your own thoughts seriously, for they will shape you.

The problems that exist in this world can not be solved by the level of thinking that created them.

The heart says yes, but the mind says no.

It may affront the military-minded person to suggest a regime that does not maintain any military secrets.

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

It is best, it seems to me, to separate one's inner striving from one's trade as far as possible. It is not good when one's daily break is tied to God's special blessing.