It is an absolute and virtually divine perfection to know how to enjoy our being rightfully.Michel de Montaigne
Money is human happiness in the abstract; he, then, who is no longer capable of enjoying human happiness in the concrete devotes himself utterly to money.Arthur Schopenhauer
Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.Cicero
Sad people dislike the happy, and the happy the sad; the quick thinking the sedate, and the careless the busy and industrious.Horace
We rarely find anyone who can say he has lived a happy life, and who, content with his life, can retire from the world like a satisfied guest.Horace