I fear this is not the right exchange to attain virtue, to exchange pleasures for pleasures, pains for pains and fears for fears, the greater for the less like coins, but that the only valid currency for which all these things should be exchanged is wisdom.
Arithmetic has a very great and elevating effect, compelling the soul to reason about abstract number, and rebelling against the introduction of visible or tngible objects into the argument.
For though a man should be a complete unbeliever in the being of gods; if he also has a native uprightness of temper, such persons will detest evil in men; their repugnance to wrong disinclines them to commit wrongful acts; they shun the unrighteous and are drawn to the upright.
If a man can be properly said to love something, it must be clear that he feels affection for it as a whole, and does not love part of it to the exclusion of the rest.
What if the man could see Beauty Itself, pure, unalloyed, stripped of mortality, and all its pollution, stains, and vanities, unchanging, divine,... the man becoming in that communion, the friend of God,... ?
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.
Where it is a general rule that it is wrong to gratify lovers, this can be attributed to the defects of those who make that rule: the government's lust for rule and the subjects' cowardice.
For neither does wealth bring honour to the owner, if he be a coward; of such a one the wealth belongs to another, and not to himself. Nor does beauty and strength of body, when dwelling in a base and cowardly man, appear comely, but the reverse of comely, making the possessor more conspicuous, and manifesting forth his cowardice.