Master and Doctor are my titles; for ten years now, without repose, I held my erudite recitals and led my pupils by the nose.

The century is advanced, but every individual begins afresh.

Mysterious in the light of day, nature retains her veil, despite our clamours: That which she does not willingly display cannot be wrenched from her with levers, screws and hammers.

Fret not over the irretrievable, but ever act as if thy life were just begun.

Superstition is the poetry of life. It is inherent in man's nature; and when we think it is wholly eradicated, it takes refuge in the strangest holes and corners, whence it peeps out all at once, as soon as it can do it with safety.

Night is the other half of life, and the better half.

Confronted by outstanding merit, there is no way of saving one's ego except by love