Until the day of his death no man can be sure of his courage.
Knowledge shrinks as wisdom grows.
Civilization advances by extending the number of important operations which...
No one who achieves success does so without acknowledging the help of others....
Religion is the last refuge of human savagery.
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...
