Aristotle
"To know how to live well, we need to know the goal of hu-
man life, since knowing how well any activity has gone is a
matter of knowing how far it has achieved its goal. Human
life, says Aristotle, goes well when we achieve happiness,
but only happiness of a certain sort, namely, happiness ap-
proved by reason. Only then are we exercising the capacities
that nature intends us to exercise, and 'living well.... Nature
intends us to enjoy the happiness of a good person.... To
make progress, we must examine the particular virtues-
reason, temperance, fidelity, courage, justice, and so on-
and discover how they contribute to the good life. This is
what Aristotle does."
