We suppose wrongly that what we have in common unites us. That something could be held in common presupposes division.

An idea is communicated when it passes from me to you.

A man who is in the grip of an idea is not thinking, which is rather the practice of passing through ideas, sifting through them in the mind, which is prior, and material, reflecting in the way the body has reflexes.

The impression of a seal in wax leaves behind an image which is static and has no life in it.