"The art of living does not consist in preserving and clinging to a particular mode of happiness, but in allowing happiness to change its form without being disappointed by the change; happiness, like a child, must be allowed to grow up"
"The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom"
