“The wise man will be as happy as circumstances permit, and if he finds the contemplation of the universe painful beyond a point, he will contemplate something else instead.”

“I do not myself think there is any superior rationality in being unhappy. The wise man will be as happy as circumstances permit, and if he finds contemplation of the universe painful beyond a point, he will contemplate something else instead.”

“With the wise man, what he has does not cease to be enjoyable because some one else has something else. Envy, in fact, is one form of vice, partly moral, partly intellectual, which consists in seeing things never in themselves but only in their relations”

“A stupid man's report of what a clever man says can never be accurate, because he unconsciously translates what he hears into something he can understand.”

“The man who pursues happiness wisely will aim at the possession of a number of subsidiary interests in addition to those central ones upon which his life is built.”

“The wise man thinks about his troubles only when there is some purpose in doing so; at other times he thinks about other things, or, if it is night, about nothing at all.”

“Happiness, as is evident, depends partly upon external circumstances and partly upon oneself.”