4 ideas
16721 | Changes in secondary qualities are caused by changes in primary qualities [Giles of Orleans] |
5987 | Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von] |
16745 | No one even knows the nature and properties of a fly - why it has that colour, or so many feet [Bacon,R] |
24043 | Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle] |