History reports that the men who can manage men manage the men who can manage only things, and the men who can manage money manage all.

Truth will not make us rich, but it will make us free.

The ego is willing but the machine cannot go on. It's the last thing a man will admit, that his mind ages.

From barbarism to civilization requires a century; from civilization to barbarism needs but a day.

Science without philosophy, facts without perspective and valuation, cannot save us from havoc and despair. Science gives us knowledge, but only philosophy can give us wisdom.

The crossroads of trade are the meeting place of ideas, the attrition ground of rival customs and beliefs; diversities beget conflict, comparison, thought; superstitions cancel one another, and reason begins.

A civilization is born Stoic and dies Epicurean.