Johann Wolfgang von Goethe

This is why we may say that those who parade piety as a purpose and an aim mostly turn into hypocrites

You really only know when you know little. Doubt grows with knowledge.

There's nothing clever that hasn't been thought of before — you've just got to try to think it all over again.

Nothing is more damaging to a new truth than an old error.

Just as, out of habit, one consults a run-down clock as though it were still going, so too one may look at the face of a beautiful woman as though she were still in love.

Individuality of expression is the beginning and end of all art.

When you see some evil you proceed to immediate action, you make an immediate attack to cure the symptom.

Mysteries do not as yet amount to miracles.

Piety is not an end but a means to attain by the greatest peace of mind the highest degree of culture.

Theories usually result from the precipitate reasoning of an impatient mind which would like to be rid of phenomena and replaces them with images, concepts, indeed often with mere words.

The desire to explain what is simple by what is complex, what is easy by what is difficult, is a calamity affecting the whole body of science, known, it is true, to men of insight, but not generally admitted.

The sum which two married people owe to one another defies calculation. It is an infinite debt, which can only be discharged through all eternity.