I hate mankind, for I think myself one of the best of them, and I know how bad I am.  ~Joseph Baretti, quoted by James Boswell, 1766, commonly misattributed to Samuel Johnson* (Thank you, Frank Lynch of SamuelJohnson.com)
The human species is made up of seven billion subspecies each consisting of one specimen.  ~Robert Brault, www.robertbrault.com
Man [...]