Cicero

A happy life consists in tranquillity of mind.

A life of peace, purity, and refinement leads to a calm and untroubled old age.

A mind without instruction can no more bear fruit than can a field, however fertile, without cultivation.

Advice is judged by results, not by intentions.

All action is of the mind and the mirror of the mind is the face, its index the eyes.

Art is born of the observation and investigation of nature.

As the old proverb says "Like readily consorts with like."

Be sure that it is not you that is mortal, but only your body. For that man whom your outward form reveals is not yourself; the spirit is the true self, not that physical figure which and be pointed out by your finger.

By force of arms.

Everyone has the obligation to ponder well his own specific traits of character. He must also regulate them adequately and not wonder whether someone else's traits might suit him better. The more definitely his own a man's character is, the better it fits him.

Force overcome by force.

Freedom is a possession of inestimable value.

He only employs his passion who can make no use of his reason.

He removes the greatest ornament of friendship, who takes away from it respect.

I will go further, and assert that nature without culture can often do more to deserve praise than culture without nature.

If you aspire to the highest place, it is no disgrace to stop at the second, or even the third, place.

In men of the highest character and noblest genius there is to be found an insatiable desire for honour, command, power, and glory.

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.

It is a great thing to know our vices.

It is a true saying that "One falsehood leads easily to another".

Let arms give place to the robe, and the laurel of the warriors yield to the tongue of the orator.

Let your desires be ruled by reason.

Liberty is rendered even more precious by the recollection of servitude.

Live as brave men; and if fortune is adverse, front its blows with brave hearts.

Men decide far more problems by hate, love, lust, rage, sorrow, joy, hope, fear, illusion, or some other inward emotion, than by reality, authority, any legal standard, judicial precedent, or statute.

Natural ability without education has more often attained to glory and virtue than education without natural ability.

Nature herself makes the wise man rich.

Neither can embellishments of language be found without arrangement and expression of thoughts, nor can thoughts be made to shine without the light of language.

Never go to excess, but let moderation be your guide.

No one can speak well, unless he thoroughly understands his subject.