I divide humanity into two groups: people who cut their nails on the left hand first and people who cut their nails the right hand first. My theory is that people who cut their nails on the left hand first are more lighthearted. They have tendency to enjoy life more. They go straight for the easiest task and save the difficult for later.

Lars von Trier for Nymphomaniac (2013)

The pleasure we derive from sex is also bound up with our recognizing, and giving a distinctive seal of approval to, those ingredients of a good life whose presence we have detected in another person. The more closely we analyze what we consider ‘sexy,’ the more clearly we will understand that eroticism is the feeling of excitement we experience at finding another human being who shares our values and our sense of the meaning of existence.

Alain de Botton