Humiliation and mental oppression by ignorant and selfish teachers wreak havoc in the youthful mind that can never be undone and often exert a baleful influence in later life.

Everybody should be ashamed who uses the wonders of science and engineering without thinking and having mentally realized not more of it than a cow realizes of the botany of the plants which it eats with pleasure.

The mind that opens to a new idea never returns to its original size

All that is valuable in human society depends upon the opportunity for development accorded the individual.

The State is made for Mankind, not mankind for the state

I was sitting in a chair in the patent office at Bern when all of a sudden a thought occurred to me: "If a person falls freely he will not feel his own weight." I was startled. This simple thought made a deep impression on me. It impelled me toward a theory of gravitation.

The Press, which is mostly controlled by vested interests, has an excessive influence on public opinion.