It was Plato, according to Sosigenes, who set this as a problem for those concerned with these things, through what suppositions of uniform and ordered movements the appearances concerning the movements of the wandering heavenly bodies could be preserved.
Love is born into every human being; it calls back the halves of our original nature together; it tries to make one out of two and heal the wound of human nature.
Excellence" is not a gift, but a skill that takes practice.
We do not act "rightly" because we are "excellent",
in fact we achieve "excellence" by acting "rightly".
For the man who makes everything that leads to happiness, or near to it, to depend upon himself, and not upon other men, on whose good or evil actions his own doings are compelled to hinge,--such a one, I say, has adopted the very best plan for living happily. This is the man of moderation; this is the man of manly character and of wisdom.