Abstract truth is the eye of reason.

How many famous and high-spirited heroes have lived a day too long?

I say to myself: "Who are you to measure infinite power?

Teach by doing whenever you can, and only fall back upon words when doing it is out of the question.

I feel an indescribable ecstasy and delirium in melting, as it were, into the system of being, in identifying myself with the whole of nature.

Presence of mind, penetration, fine observation, are the sciences of women; ability to avail themselves of these is their talent.

Cities are the abyss of the human species.