To be content with what one has is the greatest and truest of riches.
Art is born of the observation and investigation of nature.
Freedom is a possession of inestimable value.
The strictest law often causes the most serious wrong.
No one can speak well, unless he thoroughly understands his subject.
￼There is no duty more obligatory than the repayment of kindness.
It is a great thing to know our vices.
￼In so far as the mind is stronger than the body, so are the ills contracted by the mind more severe than those contracted by the body.
Liberty is rendered even more precious by the recollection of servitude.
Our span of life is brief, but is long enough for us to live well and honestly.
We think a happy life consists in tranquillity of mind.
Natural ability without education has more often attained to glory and virtue than education without natural ability.
A life of peace, purity, and refinement leads to a calm and untroubled old age.
The absolute good is not a matter of opinion but of nature.
He only employs his passion who can make no use of his reason.
Let the punishment match the offense.
Gratitude is not only the greatest of virtues, but the parent of all others.
Let your desires be ruled by reason.
Nature herself makes the wise man rich.
Our thoughts are free.
A happy life consists in tranquillity of mind.
Strain every nerve to gain your point.
Force overcome by force.
Advice is judged by results, not by intentions.
Never go to excess, but let moderation be your guide.
If you aspire to the highest place, it is no disgrace to stop at the second, or even the third, place.
Live as brave men; and if fortune is adverse, front its blows with brave hearts.
The wise are instructed by reason; ordinary minds by experience; the stupid, by necessity; and brutes by instinct.
He removes the greatest ornament of friendship, who takes away from it respect.
A mind without instruction can no more bear fruit than can a field, however fertile, without cultivation.
The first duty of a man is the seeking after and the investigation of truth.
All action is of the mind and the mirror of the mind is the face, its index the eyes.