Nothing is more gratifying to the mind of man than power or dominion.

A man should always consider how much he has more than he wants.

The utmost extent of man's knowledge, is to know that he knows nothing.

Nothing is more wretched than the mind of a man conscious of guilt.

Reading is to the mind what exercise is to the body.

Our sight is the most perfect and most delightful of all our senses. It fills the mind with the largest variety of ideas, converses with its objects at the greatest distance, and continues the longest in action without being tired or satiated . . .