Related:

• The ability to make love frivolously is the thing which distinguishes human beings from the beasts.
  -- Heywood Brou...
• I finally know what distinguishes man from the other beasts : financial worries. RENARD
• Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
  Douglas Adam...
• Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so.
  -- Douglas Adams, Last Chance to See...
• Men are blind in their own cause. -- Heywood Hale Broun (1888-1939)
• It is a human characteristic to love little animals, especially if they're attractive in some way.
  -- McCoy, "The Trouble with Tribbles," stardate 4525.6....
• Of all the strange "crimes" that human beings have legislated out of nothing, "blasphemy" is the most amazing--with "obscenity" and "indecent exposure" fighting it out for second and third place.
  -- Lazarus Long, from Robert A. Heinlein's "Time Enough For Love...
• As human beings, that is the way it is.
• A liberal is a man who leaves a room when the fight begins. -- Heywood Hale Broun (1888-1939)