We teachers make the road, others will make the journey.

I love all men who think, even those who think otherwise than myself.

Superstitions, bigotries, hypocrisies, prejudices, these phantoms, phantoms though they be, cling to life; they have teeth and nails in their shadowy substance, and we must grapple with them individually and make war on them without truce; for it is one of humanity's inevitabilities to be condemned to eternal struggle with phantoms.

Thought is the work of the intellect, reverie is its self-indulgence. To substitute day-dreaming for thought is to confuse a poison with a source of nourishment.

If you look in the eyes of the young, you see flame. If you look in the eyes of the old, you see light.

Idleness is a mother. She has a son, robbery, and a daughter, hunger.

All the forces in the world are not so powerful as an idea whose time has come.