Fantasie is belangrijker dan kennis, want kennis is begrensd.

You can never solve a problem with the same kind of thinking that created the problem in the first place.

I know very well that many scientists consider dowsing as they do astrology, as a type of ancient superstition. According to my conviction this is, unjustified. The dowsing rod is a simple instrument which shows the uncanny reaction of the human nervous system to certain factors which are unknown to us at this time.

As the area of light expands, so does the perimeter of darkness.

I believe that a simple and unassuming manner of life is best for everyone, best both for the body and the mind.

A life directed chiefly toward the fulfillment of personal desires will sooner or later always lead to bitter disappointment.

We [Jews] have no other means of self-defense than our solidarity