Intelligent life on other planets? I'm not even sure there is on earth!

The idea of a personal God is quite alien to me and seems even naïve.

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

I am strongly drawn to a frugal life and am often oppressively aware that I am engrossing an undue amount of the labor of my fellow men.

Smoke like a chimney, work like a horse, eat without thinking, go for a walk only in really pleasant company.

Live your life... as though everything is a miracle.

Peace cannot be kept by force; it can only be achieved by understanding.