The really useful education is that which follows the direction of the child's own instinctive interests, supplying knowledge for which it is seeking, not dry, detailed information wholly out of relation to its spontaneous desires.

That which exists through itself is called The Eternal. The Eternal has neither name nor shape. It is the one essence, the one primal spirit. Essence and life cannot be seen. They are contained in the light of heaven. The light of heaven cannot be seen. It is contained in the two eyes.

Every increase in knowledge requires an increase in wisdom

Contempt for happiness is usually contempt for other people's happiness, and is an elegant disguise for hatred of the human race.

Advocates of capitalism are very apt to appeal to the sacred principles of liberty, which are embodied in one maxim: The fortunate must not be restrained in the exercise of tyranny over the unfortunate.

... mathematical knowledge ... is, in fact, merely verbal knowledge. "3" means "2+1", and "4" means "3+1". Hence it follows (though the proof is long) that "4" means the same as "2+2". Thus mathematical knowledge ceases to be mysterious.

The morality of work is the morality of slaves, and the modern world has no need of slavery.