Whosoever is delighted in solitude is either a wild beast or a god.
The energy of the mind is the essence of life.
You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.
The law is reason, free from passion.
No excellent soul is exempt from a mixture of madness.
Friendship is essentially a partnership.
The ideal man bears the accidents of life with dignity and grace, making the best of circumstances.
But if nothing but soul, or in soul mind, is qualified to count, it is impossible for there to be time unless there is soul, but only that of which time is an attribute, i.e. if change can exist without soul.
Every art and every inquiry, and similarly every action and choice, is thought to aim at some good; and for this reason the good has rightly been declared to be that at which all things aim.
Suffering becomes beautiful when anyone bears great calamities with cheerfulness, not through insensibility but through greatness of mind.
I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is over self.
A great city is not to be confounded with a populous one.
Well begun is half done.
All men by nature desire knowledge.
Quality is not an act, it is a habit.
Politicians also have no leisure, because they are always aiming at something beyond political life itself, power and glory, or happiness.
Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.
For though we love both the truth and our friends, piety requires us to honor the truth first.
The young are permanently in a state resembling intoxication.
The state comes into existence for the sake of life and continues to exist for the sake of good life.
The worst form of inequality is to try to make unequal things equal.
Education is an ornament in prosperity and a refuge in adversity.
Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms.
All virtue is summed up in dealing justly.
Plato is dear to me, but dearer still is truth.
Whether if soul did not exist time would exist or not, is a question that may fairly be asked; for if there cannot be someone to count there cannot be anything that can be counted, so that evidently there cannot be number; for number is either what has been, or what can be, counted.
Bad men are full of repentance.
Those that know, do. Those that understand, teach.
The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.
To run away from trouble is a form of cowardice and, while it is true that the suicide braves death, he does it not for some noble object but to escape some ill.
Homer has taught all other poets the art of telling lies skillfully.
Happiness depends upon ourselves.
In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.
Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.
In all things of nature there is something of the marvelous.
It is clearly better that property should be private, but the use of it common; and the special business of the legislator is to create in men this benevolent disposition.