Man is not the sum of what he has already, but rather the sum of what he does not yet have, of what he could have.

Man is not the sum of what he has already, but rather the sum of what he does not yet have, of what he could have.

人不是他已经拥有的东西的总和，而是他尚未拥有的东西的总和，是他可能拥有的东西的总和。

-- Jean Paul Sartre 让·保罗·萨特