Calculation never made a hero.

To discover and to teach are distinct functions; they are also distinct gifts, and are not commonly found united in the same person.

It is God himself who can be discovered in the beauty of sensible things.

Good is never accomplished except at the cost of those who do it, truth never breaks through except through the sacrifice of those who spread it.

True religion is slow in growth, and, when once planted, is difficult of dislodgement; but its intellectual counterfeit has no root in itself: it springs up suddenly, it suddenly withers.

Man is emphatically self-made.

We must make up our minds to be ignorant of much, if we would know anything.