The experiments of the physiologist Benjamin Libet are famous for their contribution to the free will/determinism debate to the extent that in popular imagination they are often believed to have disproved the existence of free will.
The following is another essay I wrote back in 2008.
Does Plato Provide A Good Argument For the Immortality of the Soul?
Plato (423 – 347 BC) provides several arguments for his claim that the soul is immortal, and for various reasons none of these are convincing. Their fundamental flaw is that the existence of a kind of soul to which the arguments apply is presupposed. Most of the arguments are found in his Socratic dialogue Phaedo (of which the Recollection Argument is also found in the Meno, but I do not cover that version here) and a further important one is found in the last book of The Republic (another Socratic dialogue). Read the rest of this entry