BOS Moodies.
I recently came across a link to Causes of Death of Philosophers, a very witty list (
http://people.pwf.cam.ac.uk/dhm11/DeathIndex.html).
Since the song references Descartes I was reminded of a few (these are just from the D-G page):
Descartes: Stopped thinking
Darwin: Became unfit
Durkheim: Suicide
Einstein: Diced with God
Eliot: Eructation of unhealthy souls
Freud: Slipped
Galen: Lost his sense of humours
Galileo: Stopped moving
Gödel: Became incomplete
other brilliant ones include Abelard, Socrates, B.F. Skinner, Plato, Copernicus.