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. (Plato)
Happiness doesn't depend on any external conditions, it is governed by our mental attitude. (Dale Carnegie)
Happiness consists not in having, but of being, not of possessing, but of enjoying. It is the warm glow of a heart at peace with itself. (Norman Vincent Peale)
There is no value in life except what you choose to place upon it and no happiness in any place except what you bring to it yourself. (Henry David Thoreau)
The unselfish effort to bring cheer to others will be the beginning of a happier life for ourselves. (Helen Keller)
Happiness is not the absence of problems, but the willingness to deal with them joyfully. (Jonathan Lockwood Huie)
Love is trembling happiness. (Kahlil Gibran)
Whoever is happy will make others happy, too. (Anne Frank)
Simple living is the way to happy living. (Jonathan Lockwood Huie)
Happiness consists in activity. It is running steam, not a stagnant pool. (Oliver Wendell Holmes)