Probability but no truth, facility but no freedom--it is owing to these two fruits that the tree of knowledge cannot be confused with the tree of life.

Without music, life would be a mistake.

Marriage: that I call the will of two to create the one who is more than those who created it.

The Gay Science, section 108

If you are considering marriage, ask yourself one question: Will I still enjoy talking with her when I'm old?

The courage of all one really knows comes but late in life.

Necessity is not an established fact, but an interpretation.