Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.

Nature is the mother and the habitat of man, even if sometimes a stepmother and an unfriendly home.

Every great advance in science has issued from a new audacity of imagination.

Education is not preparation for life education is life itself.

No man's credit is as good as his money.

Nature is the mother and the habitat of man, even if sometimes a stepmother and an unfriendly home.

Every great advance in science has issued from a new audacity of imagination.

To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.

The path of least resistance and least trouble is a mental rut already made. It requires troublesome work to undertake the alternation of old beliefs.