I have come to know the mutability of all human relationships and have learned to insulate myself against both heat and cold so that a temperature balance is fairly well assured.

Women always worry about things that men forget; men always worry about things women remember.

Engineering is not only study of 45 subjects but it is moral studies of intellectual life. Make things as simple as possible..but not simpler.

One should never impose one's views on a problem; one should rather study it, and in time a solution will reveal itself.

The armament industry is indeed one of the greatest dangers that beset mankind. It is the hidden evil power.

Never regard study as a duty, but as the enviable opportunity to learn

Conventional words or other signs have to be sought for laboriously only in a second stage, where the associative play already referred to is sufficiently established and can be reproduced at will.