Emas non quod opus est, sed quod necesse est. Quod non opus est, asse carum est.
More from Cato the Elder
The best way to keep good acts in memory is to refresh them with new.
Permalink to quote #2 Ceterum censeo Carthaginem esse delendam.
Permalink to quote #4 Wise men learn more from fools than fools from the wise.
Permalink to quote #1