Borges cites Lucretius re: Centaurs:

They never existed: The horse-half at three years would be grown, the man-half but a babe.

Duh!

Posted on Twitter over 15 years ago and archived here at /twitter/2010/09/07/tweet-23937040815/ in the Twitter and Facebook collections.
Proximate posts in the Twitter collection
newer Twitter post from September 11, 2010, 24198798311 11 September 2010
this post Twitter post from September 8, 2010, 23937040815 08 September 2010
older Twitter post from September 3, 2010, 22907729107 03 September 2010
Proximate posts in the General collection
newer Twitter post from September 11, 2010, 24198798311 11 September 2010
this post Twitter post from September 8, 2010, 23937040815 08 September 2010
older Twitter post from September 3, 2010, 22907729107 03 September 2010