Our sense of the tragic waxes and wanes with our sensuality.

Most people are far too much occupied with themselves to be malicious.

There are various eyes. Even the Sphinx has eyes: and as a result there are various truths, and as a result there is no truth.

Those with very loud voices in their throats are nearly incapable of thinking subtle thoughts.

The poison by which the weaker nature is destroyed is strengthening to the strong individual and he does not call it poison.

The Gay Science, section 108

At the beginning of a marriage ask yourself whether this woman will be interesting to talk to from now until old age. Everything else in marriage is transitory: most of the time is spent in conversation.