I think the key to happiness is allowing ourselves to not feel bad or guilty for feeling it, and letting it be contagious. And to not be dependent on other people to create your own happiness.
Everybody can do something toward creating in his own environment kindly feelings rather than anger, reasonableness rather than hysteria, happiness rather than misery.
It is better to create than to learn! Creating is the essence of life.
If you want to live a happy life, tie it to a goal, not to people or things.
You make your Own luck.
Neale Donald Walsch