Of all forms of caution, caution in love is perhaps the most fatal to true happiness.
The Conquest of HappinessIf you have to, cut back on other things. But always fill your life with books.
Happiness Unlimited: How to be happy alwaysAll of us are in the manufacturing industry - manufacturing either our own happiness or unhappiness.
Happiness Recipe: Eat and Stay HappyYou are not alone. You are not being singled out by the fates to suffer.
How to Be Happy, Dammit: A Cynic's Guide to Spiritual Happiness