Kant strikes back (not quite as funny as the Kant attack ad–but what did you expect, this is Kant?).  (As a side note, the best recent scholarship suggests that Nietzsche did not suffer from syphilis:  see, e.g., Richard Schain, The Legend of Nietzsche’s Syphilis (Westwood:  Greenwood Press, 2001).)

(Thanks to Peter Kail for the pointer.)