As a single footstep will not make a path on the earth, so a single thought will not make a pathway in the mind. To make a deep physical path, we walk again and again. To make a deep mental path, we must think over and over the kind of thoughts we wish to dominate our lives.

In an unjust society the only place for a just man is prison.

The front aspect of great thoughts can only be enjoyed by those who stand on the side whence they arrive.

Not by constraint or severity shall you have access to true wisdom, but by abandonment, and childlike mirth-fulness. If you would know aught, be gay before it.

What I began by reading, I must finish by acting.

The way in which men cling to old institutions after the life has departed out of them, and out of themselves, reminds me of those monkeys which cling by their tails - aye, whose tails contract about the limbs, even the dead limbs, of the forest, and they hang suspended beyond the hunter's reach long after they are dead. It is of no use to argue with such men. They have not an apprehensive intellect, but merely, as it were a prehensile tail.

There are nowadays professors of philosophy, but not philosophers