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"Plato" was a philosopher, as well as mathematician, in Classical Greece. He is considered an essential figure in the development of philosophy, especially the Western philosophy/Western tradition, and he founded the Platonic Academy/Academy in Ancient Athens/Athens, the first institution of higher learning in the Western world. Along with Socrates and his most famous student, Aristotle, Plato laid the foundations of Western philosophy and science. Alfred North Whitehead once noted: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato."

Plato's dialogues have been used to teach a range of subjects, including philosophy, logic, ethics, rhetoric, religion and mathematics. His lasting themes include Platonic love, the theory of forms, the Plato's five regimes/five regimes, Innatism/innate knowledge, among others. His theory of forms launched a unique perspective on abstract objects, and led to a school of thought called Platonism. Plato's writings have been published in several fashions; this has led to several conventions regarding the naming and referencing of Plato's texts.

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Be kind, for everyone you meet is fighting a hard battle.

No law or ordinance is mightier than understanding.

There are two things a person should never be angry at, what they can help, and what they cannot.

If one has made a mistake, and fails to correct it, one has made a greater mistake.

Thinking is the talking of the soul with itself.

Death is not the worst that can happen to men.

When men speak ill of thee, live so as nobody may believe them.

No human thing is of serious importance.

Courage is knowing what not to fear.

We are twice armed if we fight with faith.

He who does not desire power is fit to hold it.

Ignorance, the root and the stem of every evil.

If women are expected to do the same work as men, we must teach them the same things.

One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors.

The qualities which a man seeks in his beloved are those characteristics of his own soul, whether he knows it or not.

Never discourage anyone...who continually makes progress, no matter how slow.

People are like dirt. They can either nourish you and help you grow as a person or they can stunt your growth and make you wilt and die.

Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination, a charm to sadness, and life to everything.

The greatest penalty of evildoing - namely, to grow into the likeness of bad men.

Astronomy compels the soul to look upwards and leads us from this world to another.

You cannot conceive the many without the one.

There are three arts which are concerned with all things: one which uses, another which makes, and a third which imitates them.

The soul of man is immortal and imperishable. a tame or civilized animal; never the less, he requires proper instruction and a fortunate nature, and then of all animals he becomes the most divine and most civilized; but if he be insufficiently or ill- educated he is the most savage of earthly creatures.

Honesty is for the most part, less profitable than dishonesty.

Good actions give strength to ourselves and inspire good actions in others.

Music gives a soul to the universe, wings to the mind, flight to the imagination, a charm to sadness, gaiety and life to everything. It is the essence of order, and leads to all that is god, just, and beautiful, of which it is the invisible, but never less, dazzaling, passionate, and eternal form.

Knowledge is true opinion.

Musical training is a more potent instrument than any other, because rhythm and harmony find their way into the inward places of the soul, on which they mightily fasten imparting grace.

He who commits injustice is ever made more wretched than he who suffers it.

Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of a lover, everyone becomes a poet.

The direction in which education starts a man will determine his future life.

As empty vessels make the loudest sound, so they that have least with are the greatest babblers.

Those who are too smart to engage in politics are punished by being governed by those who are dumber.

But, my dearest Agathon, it is truth which you cannot contradict; you can without any difficulty contradict Socrates.

Ignorance of all things is an evil neither terrible nor excessive, nor yet the greatest of all; but great cleverness and much learning, if they be accompanied by a bad training, are a much greater misfortune.

Nothing in the affairs of men is worthy of great anxiety.

The partisan, when he is engaged in a dispute, cares nothing about the rights of the question, but is anxious only to convince his hearers of his own assertions.

You are young, my son, and, as the years go by, time will change and even reverse many of your present opinions. Refrain therefore awhile from setting yourself up as a judge of the highest matters.

Poetry comes nearer to vital truth than history.

False words are not only evil in themselves, but they infect the soul with evil.

You can discover more about a person in an hour of play than in a year of conversation.

Wise men talk because they have something to say; fools, because they have to say something.

I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly combat.

No man should bring children into the world who is unwilling to persevere to the end in their nature and education.

Just as it would be madness to settle on medical treatment for the body of a person by taking an opinion poll of the neighbors, so it is irrational to prescribe for the body politic by polling the opinions of the people at large.

Science is nothing but perception.

Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws.

Justice will only exist where those not affected by injustice are filled with the same amount of indignation as those offended.

He whom love touches not walks in darkness.

No one ever teaches well who wants to teach, or governs well who wants to govern.

The beginning is the most important part of the work.

Love is a serious mental disease.

Only the dead have seen the end of war.

And the only life which looks down upon the life of political ambition is that of true philosophy. Do you know of any other?

The most effective kind of education is that a child should play amongst lovely things.

Bodily exercise, when compulsory, does no harm to the body; but knowledge which is acquired under compulsion obtains no hold on the mind.

Necessity, who is the mother of invention.

All men are by nature equal, made all of the same earth by one Workman; and however we deceive ourselves, as dear unto God is the poor peasant as the mighty prince.

He who is of calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.

Philosophy is the highest music.

Friends have all things in common.

No evil can happen to a good man, either in life or after death.

Must not all things at the last be swallowed up in death?

The people have always some champion whom they set over them and nurse into greatness...This and no other is the root from which a tyrant springs; when he first appears he is a protector.

I have hardly ever known a mathematician who was capable of reasoning.

When there is an income tax, the just man will pay more and the unjust less on the same amount of income.

Wealth is the parent of luxury and indolence, and poverty of meanness and viciousness, and both of discontent.

We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.

Those who are able to see beyond the shadows and lies of their culture will never be understood, let alone believed, by the masses.

Attention to health is life's greatest hindrance.

...Then anyone who leaves behind him a written manual, and likewise anyone who receives it, in the belief that such writing will be clear and certain, must be exceedingly simple-minded...

The price good men pay for indifference to public affairs is to be ruled by evil men.

Of all the animals, the boy is the most unmanageable.

There is no such thing as a lover's oath.

They certainly give very strange names to diseases.

The punishment which the wise suffer who refuse to take part in the government is to live under the government of worse men.

He was a wise man who invented God.

Mankind censure injustice fearing that they may be the victims of it, and not because they shrink from committing it.

Laws are partly formed for the sake of good men, in order to instruct them how they may live on friendly terms with one another, and partly for the sake of those who refuse to be instructed, whose spirit cannot be subdued, or softened, or hindered from plunging into evil.

Everything that deceives may be said to enchant.