Apothegm (a’-po-th-e-gem): One of several terms describing short, pithy sayings. Others include adage, gnome, maxim, paroemia, proverb, and sententia.
“For every minute you remain angry, you give up sixty seconds of revenge.” Ralph Dubya Emerson (The Over-Sole: Under-Where?)
Definition courtesy of “Silva Rhetoricae” (rhetoric.byu.edu)
The Daily Trope 