The Best sign of Wisdom is the consistency between the words and deeds.

It’s in the very trickery that it pleases me. But show me how the trick is done, and I have lost my interest therein.

The mind should be allowed some relaxation, that it may return to its work all the better for the rest.

Live among others as if God beheld you; speak to God as if others were listening.

Fortune's not content with knocking a man down; she sends him spinning head over heels, crash upon crash.

A single lifetime, even though entirely devoted to the sky, would not be enough for the study of so vast a subject. A time will come when our descendants will be amazed that we did not know things that are so plain to them.

Truth never perishes.