Intellectual liberty is the air of the soul, the sunshine of the mind, and without it, the world is a prison, the universe is a dungeon.

There is more real devotional feeling summoned from the temple of the mind by great music than by any sermon ever delivered.

It is perfectly delightful to take advantage of the conscientious labors of those who go through and through volume after volume, divide with infinite patience the gold from the dross, and present us with the pure and shining coin. Such men may be likened to bees who save us numberless journeys by giving us the fruit of their own.

I would rather that we all should go to eternal chaos, to black and starless night, than that just one soul should suffer eternal agony.

Sacred are the lips from which has issued only truth.

Everyone should be taught the nobility of labor, the heroism and splendor of honest effort. As long as it is considered disgraceful to labor, or aristocratic not to labor, the world will be filled with idleness and crime, and with every possible moral deformity.

Courage without conscience is a wild beast.