The reason men oppose progress is not that they hate progress but that they love inertia.
Illness is the doctor to whom we pay most heed to kindness to knowledge we make promise only pain we obey.
Every reader finds himself. The writer's work is merely a kind of optical...
We don't receive wisdom we must discover it for ourselves after a journey...
We must never be afraid to go too far for truth lies beyond.
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...