4 ideas
19393 | What is not active is nothing [Leibniz] |
13082 | The complete concept of an individual includes contingent properties, as well as necessary ones [Leibniz] |
5987 | Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von] |
24043 | Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle] |