Do you believe then that the sciences would ever have arisen and become great if there had not before hand been magicians, alchemists, astrologers and wizards, who thirsted and hungered after abscondite and forbidden powers?

Not he is great who can alter matter, but he who can alter my state of mind.

The radical hostility, the deadly hostility against sensuality, is always a symptom to reflect on: it entitles us to suppositions concerning the total state of one who is excessive in this manner.

All I need is a sheet of paper and something to write with, and then I can turn the world upside down.

Should not the giver be thankful that the receiver received? Is not giving a need? Is not receiving, mercy?

Comparing man and woman on the whole, one may say: woman would not possess a genius for ornamentation if she did not also possessan instinct for the secondary role.

For our self respect depends upon our ability to make requital, for good or for evil.