We do not have to visit a madhouse to find disordered minds; our planet is the mental institution of the universe.

I've often heard it said a preacher might learn with a comedian for a teacher.

Few are open to conviction, but the majority of men are open to persuasion

What is hardest of all? That which seems most simple: to see with your eyes what is before your eyes.

In all our academies we attempt far too much. ... In earlier times lectures were delivered upon chemistry and botany as branches of medicine, and the medical student learned enough of them. Now, however, chemistry and botany are become sciences of themselves, incapable of comprehension by a hasty survey, and each demanding the study of a whole life, yet we expect the medical student to understand them. He who is prudent, accordingly declines all distracting claims upon his time, and limits himself to a single branch and becomes expert in one thing.

A lot of people do not care about your money until nearly penniless. They also do so with time

Talk well of the absent whenever you have the opportunity.