What can the schools do to defend democracy? Should they preach a specific political doctrine? I believe they should not. If they are able to teach young people to have a critical mind and a socially oriented attitude, they will have done all that is necessary.

Intellectuals solve problems, geniuses prevent them.

If you want the answer to anything, go sit in Nature for awhile

Truth is what stands the test of experience.

A mathematical equation stands forever.

If the facts don't fit the theory, change the facts.

It is an outcome of faith that nature-as she is perceptible to our five senses-takes the character of such a well formulated puzzle.