and simple doctrines could be true.
The Megarian sect was founded by Euclid of Megara (not the celebrated mathematician), a great admirer of Socrates. The Athenians passed a law decreeing death to any citizen of Megara found in the city of Athens. Nothing daunted, Euclid donned woman's clothing and went at night to study with Socrates. After the cruel death of their teacher, the disciples of Socrates, fearing a similar fate, fled to Megara, where they were entertained with great honor by Euclid. The Megarian school accepted the Socratic doctrine that virtue is wisdom, adding to it the Eleatic concept that goodness is absolute unity and all change an illusion of the senses. Euclid maintained that good has no opposite and therefore evil does not exist. Being asked about the nature of the gods, he declared himself ignorant of their disposition save that they hated curious persons.
The Megarians are occasionally included among the dialectic philosophers. Euclid (who died 374? B.C.) was succeeded in his school by Eubulides, among whose disciples were Alexinus and Apollonius Cronus. Euphantus, who lived to great age and wrote many tragedies, was among the foremost followers of Eubulides. Diodorus is usually included in the Megarian school, having heard Eubulides lecture.
According to legend, Diodorus died of grief because he could not answer instantly certain questions asked him by Stilpo, at one time master of the Megarian school. Diodorus held that nothing can be moved, since to be moved it must be taken out of the place in which it is and put into the place where it is not, which is impossible because all things must always be in the places where they are.
PLATO.
From Thomasin's Recuil des Figures, Groupes, Thermes, Fontaines, Vases et autres Ornaments.
Plato's real name was Aristocles. When his father brought him to study with Socrates, the great Skeptic declared that on the previous night he had dreamed of a white swan, which was an omen that his new disciple was to become one of the world's illumined. There is a tradition that the immortal Plato was sold as a slave by the King of Sicily.
The Cynics were a sect founded by Antisthenes of Athens (444-365? B.C.), a disciple of Socrates. Their doctrine may be described as an extreme individualism which considers man as existing for himself alone and advocates surrounding him by inharmony, suffering, and direst need that be may thereby be driven to retire more completely into his own nature. The Cynics renounced all worldly possessions, living in the rudest shelters and subsisting upon the coarsest and simplest food. On the assumption that the gods wanted nothing, the Cynics affirmed that those whose needs were fewest consequently approached closest to the divinities. Being asked what he gained by a life of philosophy, Antisthenes replied that he had learned how to converse with himself.
Diogenes of Sinopis is remembered chiefly for the tub in the Metroum which for many years served him as a home. The people of Athens loved the beggar-philosopher, and when a youth in jest bored holes in the tub, the city presented Diogenes with a new one and punished the youth. Diogenes believed that nothing in life can be rightly accomplished without exercitation. He maintained that everything in the world belongs to the wise, a declaration which he proved by the following logic: "All things belong to the gods; the gods are friends to wise persons; all things are common amongst friends; therefore all things belong to the wise." Among the Cynics are Monimus, Onesicritus, Crates, Metrocles, Hipparchia (who married Crates), Menippus, and Menedemus.
The Cyrenaic sect, founded by Aristippus of Cyrene (435-356? B.C.), promulgated the doctrine of hedonism. Learning of the fame of Socrates, Aristippus journeyed to Athens and applied himself to the teachings of the great Skeptic. Socrates, pained by the voluptuous and mercenary tendencies of Aristippus, vainly labored to reform the young man. Aristippus has the distinction of being consistent in principle and practice, for he lived in perfect harmony with his philosophy that the quest of pleasure was the chief purpose of life. The doctrines of the Cyrenaics may be summarized thus: All that is actually known concerning any object or condition is the feeling which it awakens in man's own nature. In the sphere of ethics that which awakens the most pleasant feeling is consequently to be esteemed as the greatest good. Emotional reactions are classified as pleasant or gentle, harsh, and mean. The end of pleasant emotion is pleasure; the end of harsh emotion, grief; the end of mean emotion, nothing.
Through mental perversity some men do not desire pleasure. In reality, however, pleasure (especially of a physical nature) is the true end of existence and exceeds in every way mental and spiritual enjoyments.
Pleasure, furthermore, is limited wholly to the moment; now is the only time. The past cannot be regarded without regret and the future cannot be faced without misgiving; therefore neither is conducive to pleasure. No man should grieve, for grief is the most serious of all diseases. Nature permits man to do anything he desires; he is limited only by his own laws and customs. A philosopher is one free from envy, love, and superstition, and whose days are one long round of pleasure. Indulgence was thus elevated by Aristippus to the chief position among the virtues. He further declared philosophers to differ markedly from other men in that they alone would not change the order of their lives if all the laws of men were abolished. Among prominent philosophers influenced by the Cyrenaic doctrines were Hegesias, Anniceris, Theodorus, and Bion.
The sect of the Academic philosophers instituted by Plato (427-347 B.C.) was divided into three major parts -- the old, the middle, and the new Academy. Among the old Academics were Speusippus, Zenocrates, Poleman, Crates, and Crantor. Arcesilaus instituted the middle Academy and Carneades founded the new. Chief among the masters of Plato was Socrates. Plato traveled widely and was initiated by the Egyptians into the profundities of Hermetic philosophy. He also derived much from the doctrines of the Pythagoreans. Cicero describes the threefold constitution of Platonic philosophy as comprising ethics, physics, and dialectics. Plato defined good as threefold in character: good in the soul, expressed through the virtues; good in the body, expressed through the symmetry and endurance of the parts; and good in the external world, expressed through social position and companionship. In The Book of Speusippus on Platonic Definitions, that great Platonist thus defines God: "A being that lives immortally by means of Himself alone, sufficing for His own blessedness, the eternal Essence, cause of His own goodness. According to Plato, the One is the term most suitable for defining the Absolute, since the whole precedes the parts and diversity is dependent on unity, but unity not on diversity. The One, moreover, is before being, for to be is an attribute or condition of the One.
Platonic philosophy is based upon the postulation of three orders of being: that which moves unmoved, that which is self-moved, and that which is moved. That which is immovable but moves is anterior to that which is self-moved, which likewise is anterior to that which it moves. That in which motion is inherent cannot be separated from its motive power; it is therefore incapable of dissolution. Of such nature are the immortals. That which has motion imparted to it from another can be separated from the source of its animating principle; it is therefore subject to dissolution. Of such nature are mortal beings. Superior to both the mortals and the immortals is that condition which continually moves yet itself is unmoved. To this constitution the power of abidance is inherent; it is therefore the Divine Permanence upon which all things are established. Being nobler even than self-motion, the unmoved Mover is the first of all dignities. The Platonic discipline was founded upon the theory that learning is really reminiscence, or the bringing into objectivity of knowledge formerly acquired by the soul in a previous state of existence. At the entrance of the Platonic school in the Academy were written the words: "Let none ignorant of geometry enter here."
After the death of Plato, his disciples separated into two groups. One, the Academics, continued to meet in the Academy where once he had presided; the other, the Peripatetics, removed to the Lyceum under the leadership of Aristotle (384-322 B.C.). Plato recognized Aristotle as his greatest disciple and, according to Philoponus,
