Contentment produces, in some measure, all those effects which the alchemist usually ascribes to what he calls the philosopher's stone; and if it does not bring riches, it does the same thing by banishing the desire for them.
The utmost we can hope for in this world is contentment; if we aim at anything higher, we shall meet with nothing but grief and disappointment. A man should direct all his studies and endeavors at making himself easy now and happy hereafter.