Now of the Chief Good (i.e. of Happiness) men seem to form their notions from the different modes of life, as we might naturally expect: the many and most low conceive it to be pleasure, and hence they are content with the life of sensual enjoyment. For there are three lines of life which stand out prominently to view: that just mentioned, and the life in society, and, thirdly, the life of contemplation.
– Aristotle, Nicomachean Ethics