There is often more spiritual force in a proverb than in whole philosophical systems.

You can make even a parrot into a learned political economist - all he must learn are the two words "supply" and "demand."

Biography is the most universally pleasant and profitable of all reading.

He who could foresee affairs three days in advance would be rich for thousands of years.

Narrative is linear, but action has breadth and depth as well as height and is solid.

The block of granite which was an obstacle in the pathway of the weak, became a stepping-stone in the pathway of the strong.

The healthy know not of their health, but only the sick: this is the physician's aphorism, and applicable in a far wider sense than he gives it.