There is room enough in human life to crowd almost every art and science in it. If we pass ""no day without a line""-visit no place without the company of a book-we may with ease fill libraries or empty them of their contents. The more we do, the more busy we are, the more leisure we have.

Those people who are always improving never become great. Greatness is an eminence, the ascent to which is steep and lofty, and which a man must seize on at once by natural boldness and vigor, and not by patient, wary steps.

The best part of our lives we pass in counting on what is to come.

He will never have true friends who is afraid of making enemies.

[Science is] the desire to know causes.

The confession of our failings is a thankless office. It savors less of sincerity or modesty than of ostentation. It seems as if we thought our weaknesses as good as other people's virtues.

If we use no ceremony towards others, we shall be treated without any. People are soon tired of paying trifling attentions to those who receive them with coldness, and return them with neglect.