A schoolteacher or professor cannot educate individuals, he educates only species.

The feeling of health can only be gained by sickness.

God: personified incomprehensibility.

Perhaps pure reason without heart would never have thought of God.

What is called an acute knowledge of human nature is mostly nothing but the observer's own weaknesses reflected back from others.

The most perfect ape cannot draw an ape; only man can do that; but, likewise, only man regards the ability to do this as a sign of superiority.

Just as there are polysyllabic words that say very little, so there are also monosyllabic words of infinite meaning.