Play not with paradoxes. That caustic which you handle in order to scorch others may happen to sear your own fingers and make them dead to the quality of things. – George Eliot, Felix Holt, The Radical

It is difficult to remember all, and ungracious to omit any. – Cicero

The minute a phrase becomes current, it becomes an apology for not thinking accurately to the end of the sentence. – Oliver Wendell Holmes

Sympathy is never wasted except when you give it to yourself. – John W. Raper