Plato (428-347 B.C, greek philosopher, one of the most creative and influent thinker of the occidental philosophy. He was the first in using the term PHILOSOPHY.

His relevant ideas were theory conventions. He proposed that the objects in the physic wordl look like or participate thanks to the perfect conventions in the ideal world.

Plato was born in an aristocratic family in Athens. His father, Ariston was descendent from the first kings of Athens. Perictione, his mother, was a relative of a legislator from VI B.C Solon. His father died when he was a child and his mother got married again Pirilampes, a Pericle´s statesman.

When he was young, Plato aspired to politics but, he became disillusioned with Athen´sgovernants.

Later he proclaimed as Socrate´s disciple, he accepted his philosophy and his dialectical way of debate: true´s acquisition by the questions, answers and more questions. Although it is an episode very discussed, which many philosophers consider a literary metaphor about the power, Plato was a witness of Socrate´s death during the democratic governament of Athens in 399 B.C. He abandoned Athens for some time and he travelled to Italy, Sicile,and Egypt.

In 387 Plato founded the Academy in Athens, an institution which is often considered like the first european university.The Academy offered a large studies plan, which included subjects like astronomy, biology, mathematics, politic and philosophy theory. Aristotle was his more important pupil.

Plato travelled to Scile in 377 B.C in order to be the tutor of the new Siracusa´s governant Dionysus the Young. The experimen failed. Pato returned to Siracusa in 367 B.C but, ones more time his participation in the Sicilian´s happening did not success. He spent the last years of his life taking conferences in the Academy and writting. He died about 80 years old in 348 or 347 B.C.

The Plato´s works were dialogues, where philosophical ideas were exposed, they were discussed and critized in the context of a conversation or debat where two or more people participated. The first group of Plato´s works includes 35 dialogues and 13 letters. It has been discussed the autencity of some dialogues and the most of the letters.

The dialogues can be divided in three stages of composition. The first represents the attempt which Plato did of communicating the philosophy and the dialectic´s style of Socrates. Some of these dialogues have the same argument. Socrates finds who says to know a lot, he manifests to be ignorant and he ask for help those who afirm to know. However, when Socrates begins to make questions, it is obvious who is considered the wiser he does not know what he afirms to know and Socrates seems like the most wiser of the two characters because at least, he knows nothing. This knowledge, of course, is the beginning of wisdom. In this group of dialogues you can find Carmides ( an attempt to define the mildness), Lisis (one discussion about the friendship), Lacques ( a search of the meaning´s value), Protagoras ( a defens of the thesis that the virtue is knowledge and that it is possible understand it), Eutifron ( a consideration about the piety´s nature), and the book I of The Republic ( one discussion about the justice).

The dialogues of these periods of the Plato´s life reflect his own philosophical evolution. The ideas of these plays are confered to the own Plato, although Socrates follows being the main characters in many dialogues. The works of the intermediate period embraces Gorgias ( one reflexion about different ethic matters), Menon ( one discussion about the knowledge´s nature), Apology (the defens which Socrates did about himself during the judgement where he was accused of being atheistic and corruption of teenagers), Cratilus ( the defens of Socrates of the obedience to the State´s laws), Fedro (Socrate´s death escene in which he discusses about the ideas theory, the soul´s nature and inmortality´s matter, The Banquet (important dramatic realization of Plato that has many speechs about beauty and love) and The Republic ( the most important philosophical play of Plato, which is a detailed discussion about justice´s nature).

Among the works of the last periode, it is found Teeteto ( a denial that the knowledge must to be identified with the perception sense), Parmenides ( a critic assesment of the ideas´ theory), Sophist ( a later reflexion about the ideas and the forms), Filebo (discussion about the relation between good and pleasure), Timeo ( Plato´s ideas about the nature sciences and the cronology), and Laws (a more practical analysis of the politics and social matters).

The ethic theory of Plato is about the suposition that the virtue is a knowledge and this can be learned. That doctrine must be understood as the unit of the ideas theory.

The last idea of Plato is the idea of God, and the knowledge of that idea is the guide in the juncture of adopting a moral decision. Plato said that to know God was doing good. The consequence about that is the one who behaves in a inmoral way does it since the ignorance. That conclusion is from the certainty of Plato about that one virtuous person is happy, and how people always whish their own happiness, they always want to do what is moral.

Plato´s influence through philosophy´s history has been inmense. His Academy existed till 529 B.C, closed by the Bizantine emperor Justiniano I, who objected to the propagation of pagan teachings. Plato´s impact in Jew´s thoughts is obvious in the works of alexandrine philosophers Filon. The Neoplatonism, founded by Plotino, a philosopher, which was an important development to Plato´s ideas.

Some theologists were the first christian figures from a platonic perspective.