Plato (437-347) was Socrates’ prized student. From a wealthy and powerful family, his actual name was Aristocles -- Plato was a nickname, referring to his broad physique. When he was about twenty, he came under Socrates’ spell and decided to devote himself to philosophy. Devastated by Socrates’ death, he wandered around Greece and the Mediterranean and was taken by pirates. His friends raised money to ransom him from slavery, but when he was released without it, they bought him a small property called Academus to start a school -- the Academy, founded in 386.

The Academy was more like Pythagoras’ community -- a sort of quasi-religious fraternity, where rich young men studied mathematics, astronomy, law, and, of course, philosophy. It was free, depending entirely on donations. True to his ideals, Plato also permitted women to attend! The Academy would become the center of Greek learning for almost a millennium.

Plato can be understood as idealistic and rationalistic, much like Pythagoras but much less mystical. He divides reality into two: On the one hand we have ousia, idea or ideal. This is ultimate reality, permanent, eternal, spiritual. On the other hand, there’s phenomena, which are a manifestation of the ideal. Phenomena are appearances -- things as they seem to us -- and are associated with matter, time, and space.

Phenomena are illusions which decay and die. Ideals are unchanging, perfect. Phenomena are definitely inferior to Ideals! The idea of a triangle -- the defining mathematics of it, the form or essence of it -- is eternal. Any individual triangle, the triangles of the day-to-day experiential world, are never quite perfect: They may be a little crooked, or the lines a little thick, or the angles not quite right.... They only approximate that perfect triangle, the ideal triangle.

If it seems strange to talk about ideas or ideals as somehow more real than the world of our experiences, consider science. The law of gravity, 1+1=2, “magnets attract iron,” E=mc², and so on -- these are universals, not true for one day in one small location, but true forever and everywhere! If you believe that there is order in the universe, that nature has laws, you believe in ideas!

Ideas are available to us through thought, while phenomena are available to us through our senses. So, naturally, thought is a vastly superior means to get to the truth. This is what makes Plato a rationalist, as opposed to an empiricist, in epistemology.

Senses can only give you information about the ever-changing and imperfect world of phenomena, and so can only provide you with implications about ultimate reality, not reality itself. Reason goes straight to the idea. You “remember,” or intuitively recognize the truth, as Socrates suggested in the dialog Meno.

According to Plato, the phenomenal world strives to become ideal, perfect, complete. Ideals are, in that sense, a motivating force. In fact, he identifies the ideal with God and perfect goodness. God creates the world out of materia (raw material, matter) and shapes it according to his “plan” or “blueprint” -- ideas or the ideal. If the world is not perfect, it is not because of God or the ideals, but because the raw materials were not perfect. I think you can see why the early Christian church made Plato an honorary Christian, even though he died three and a half centuries before Christ!

Plato applies the same dichotomy to human beings: There’s the body, which is material, mortal, and “moved” (a victim of causation). Then there’s the soul, which is ideal, immortal, and “unmoved” (enjoying free will).

The soul includes reason, of course, as well as self-awareness and moral sense. Plato says the soul will always choose to do good, if it recognizes what is good. This is a similar conception of good and bad as the Buddhists have: Rather than bad being sin, it is considered a matter of ignorance. So, someone who does something bad requires education, not punishment.

The soul is drawn to the good, the ideal, and so is drawn to God. We gradually move closer and closer to God through reincarnation as well as in our individual lives. Our ethical goal in life is resemblance to God, to come closer to the pure world of ideas and ideal, to liberate ourselves from matter, time, and space, and to become more real in this deeper sense. Our goal is, in other words, self-realization.

Plato talks about three levels of pleasure. First is sensual or physical pleasure, of which sex is a great example. A second level is sensuous or esthetic pleasure, such as admiring someone’s beauty, or enjoying one’s relationship in marriage. But the highest level is ideal pleasure, the pleasures of the mind. Here the example would be Platonic love, intellectual love for another person unsullied by physical involvement.

Paralleling these three levels of pleasure are three souls. We have one soul called appetite, which is mortal and comes from the gut. The second soul is called spirit or courage. It is also mortal, and lives in the heart. The third soul is reason. It is immortal and resides in the brain. The three are strung together by the cerebrospinal canal.

Plato is fond of analogies. Appetite, he says, is like a wild horse, very powerful, but likes to go its own way. Spirit is like a thoroughbred, refined, well trained, directed power. And reason is the charioteer, goal-directed, steering both horses according to his will.

Other analogies abound, especially in Plato’s greatest work, The Republic. In The Republic, he designs (through Socrates) a society in order to discover the meaning of justice. Along the way, he compares elements of his society (a utopia, Greek for “no place”) to the three souls: The peasants are the foundation of the society. They till the soil and produce goods, i.e. take care of society’s basic appetites. The warriors represent the spirit and courage of the society. And the philosopher kings guide the society, as reason guides our lives.

Before you assume that we are just looking at a Greek version of the Indian caste system, please note: Everyone’s children are raised together and membership in one of the three levels of society is based on talents, not on one’s birth parents! And Plato includes women as men’s equals in this system.

I leave you with a few quotes:

"Wonder is the feeling of a philosopher, and philosophy begins in wonder."

"...(I)f you ask what is the good of education in general, the answer is easy; that education makes good men, and that good men act nobly."

"(I) do to others as I would they should do to me."

"Our object in the construction of the State is the greatest happiness of the whole, and not that of any one class."