The most essential thing for happiness is the gift of friendship.

Patients rarely die of the disease from which they suffer. Secondary or terminal infections are the real cause of death.

He who knows syphilis knows medicine

Fed on the dry husks of facts, the human heart has a hidden want which science cannot supply.

Think not of the amount to be accomplished, the difficulties to be overcome, or the end to be attained, but set earnestly at the little task at your elbow, letting that be sufficient for the day.

The teacher's life should have three periods, study until twenty-five, investigation until forty, profession until sixty, at which age I would have him retired on a double allowance.

No bubble is so iridescent or floats longer than that blown by the successful teacher.