Drive thy business or it will drive thee.
Don’t flatter yourself that friendship authorizes you to say disagreeable things to your intimates. The nearer you come into relation with a person, the more necessary do tact and courtesy become. Except in cases of necessity, which are rare, leave your friend to learn unpleasant things from his enemies they are ready enough to tell them.
The more you listen to the voice within you, the better you will hear what is sounding outside.
Advice in old age is foolish; for what can be more absurd than to increase our provisions for the road the nearer we approach to our journey’s end.
Books won’t stay banned. They won’t burn. Ideas won’t go to jail. In the long run of history, the censor and the inquisitor have always lost. The only sure weapon against bad ideas is better ideas. The source of better ideas is wisdom. The surest path to wisdom is a liberal education.