The authors of great evils know best how to remove them.

To make no mistakes is not in the power of man; but from their errors and mistakes the wise and good learn wisdom for the future.

The flatterer's object is to please in everything he does; whereas the true friend always does what is right, and so often gives pleasure, often pain, not wishing the latter, but not shunning it either, if he deems it best.

Custom is almost a second nature.

There are two sentences inscribed upon the Ancient oracle... "Know thyself" and "Nothing too much"; and upon these all other precepts depend.

Nature and wisdom never are at strife.

When malice is joined to envy, there is given forth poisonous and feculent matter, as ink from the cuttle-fish.