And Strato the natural philosopher, when he heard that Menedemus had many more pupils than he had, said, "Is it wonderful at all that more wish to wash than to be anointed?" And Aristotle, writing to Antipater, said, "Not only has Alexander a right to plume himself on his rule over many subjects, but no less legitimate is satisfaction at entertaining right opinions about the gods." For those that think so highly of their own walk in life will not be so envious about their neighbours'. We do not expect a vine to bear figs, nor an olive grapes, yet now-a-days, with regard to ourselves, if we have not at one and the same time the privilege of being accounted rich and learned, generals and philosophers, flatterers and outspoken, stingy and extravagant, we slander ourselves and are dissatisfied, and despise ourselves as living a maimed and imperfect life. Furthermore, we see that nature teaches us the same lesson.[747] For as she provides different kinds of beasts with different kinds of food, and has not made all carnivorous, or seed-pickers, or root-diggers, so she has given to mankind various means of getting a livelihood, "one by keeping sheep, another by ploughing, another by fowling,"[748] and another by catching the fish of the sea. We ought each therefore to select the calling appropriate for ourselves and labour energetically in it, and leave other people to theirs, and not demonstrate Hesiod as coming short of the real state of things when he said, "Potter is wroth with potter, smith with smith."[749] For not only do people envy those of the same trade and manner of life, but the rich envy the learned, and the famous the rich, and advocates sophists, aye, and freemen and patricians admire and think happy comedians starring it at the theatres, and dancers, and the attendants at kings' courts, and by all this envy give themselves no small trouble and annoyance.