The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day. Never lose a holy curiosity.

A sudden bold and unexpected question doth many times surprise a man and lay him open.

In false quarrels there is no true valor.

Two things, well considered, would prevent many quarrels; first to have it well ascertained whether we are not disputing about terms rather than things; and secondly, to examine whether that on which we differ in worth contending about.

Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction and skillful execution; it represents the wise choice of many alternatives.

We ought not to look back unless it is to derive useful lessons from past errors, and for the purpose of profiting by dear-brought experience.

Everywhere is walking distance if you have the time.

The man without a purpose is like a ship without a rudder - waif, a nothing, a no man. Have a purpose in life, and, having it, throw such strength of mind and muscle into your work as God has given you.

In nature there are neither rewards nor punishment - there are consequences.

The Scripture vouches Solomon for the wisest of men; and his proverbs prove him so, The seven wise men of Greece, so famous for their wisdom all the world over, acquired all that fame each of them by a single sentence, consisting of two or three words.