"There is no pain equal to that which two lovers can inflict on one another. This should be made clear to all who contemplate such a union. The avoidance of this pain is the beginning of wisdom, for it is strong enough to contaminate the rest of our lives"
"Raising children is an incredibly hard and risky business in which no cumulative wisdom is gained: each generation repeats the mistakes the previous one made"
"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"