I have always thought respectable people scoundrels, and I look anxiously at my face every morning for signs of my becoming a scoundrel. - Bertrand Russell

[T]he philosophy of Plotinus has the defect of encouraging men to look within rather than to look without: when we look within we see nous, which is divine, while when we look without we see the imperfections of the sensible world. This kind of subjectivity was a gradual growth; it is to be found in the doctrines of Protagoras, Socrates, and Plato, as well as in the Stoics and Epicureans. But at first it was only doctrinal, not temperamental; for a long time it failed to kill scientific curiosity. [...] Plotinus is both an end and a beginning—an end as regards the Greeks, a beginning as regards Christendom.

The good life is one inspired by love and guided by knowledge.

The feeling is one born of a too easy satisfaction of natural needs. The human animal, like others, is adapted to a certain amount of struggle for life, and when by means of great wealth homo sapiens can gratify all his whims without effort, the mere absence
of effort from his life removes an essential ingredient of happiness. The man who acquires easily things for which he feels only a very moderate desire concludes that the attainment of desire does not bring happiness. If he is of a philosophic dispositi on, he concludes that human life is essentially wretched, since the man who has all he wants is still unhappy. He forgets that to be without some of the things you want is an indispensable part of happiness.