The choice of souls was in most cases based on their own experience of a previous life... Knowledge easily acquired is that which the enduing self had in an earlier life, so that it flows back easily.
PlatoWe ought to fly away from earth to heaven as quickly as we can; and to fly away is to become like God, as far as this is possible; and to become like him is to become holy, just, and wise.
PlatoAre these things good for any other reason except that they end in pleasure, and get rid of and avert pain? Are you looking to any other standard but pleasure and pain when you call them good?
PlatoWhenever a person strives, by the help of dialectic, to start in pursuit of every reality by a simple process of reason, independent of all sensuous information - never flinching, until by an act of the pure intelligence he has grasped the real nature of good - he arrives at the very end of the intellectual world.
Plato