There is no cosmetic for beauty like happiness. -Lady Blessington
And in the end it's not the years in your life that count. It's the life in your years. -Abraham Lincoln

For every minute you are angry, you lose sixty seconds of happiness. -Anonymous
Unless we think of others and do something for them, we miss one of the greatest sources of happiness. -Ray Lyman Wilbur
A smile is a curve that sets everything straight. -Anonymous

A man's as miserable as he thinks he is. -Seneca
Of all the things you wear, your expression is the most important. -Janet Lane
The grand essentials of happiness are: something to do, something to love, and something to hope for. -Allan K. Chalmers

Joy is the feeling of grinning inside. - Melba Colgrove
The best and most beautiful things in this world cannot be seen or even heard, but must be felt with the heart. -Helen Keller
Most people would rather be certain they're miserable, than risk being happy. -Robert Anthony

Happiness is the feeling you're feeling when you want to keep feeling it. -Anonymous
There are some days when I think I'm going to die from an overdose of satisfaction. -Salvador Dali
The best way for a person to have happy thoughts is to count his blessings and not his cash. -Anonymous

Happiness is when what you think, what you say, and what you do are in harmony. -Mahatma Gandhi
Most folks are about as happy as they make up their minds to be. -Abraham Lincoln
We must laugh before we are happy, for fear of dying without having laughed at all. -Jean de La Bruyere

And 3 of my favorites...
Nobody really cares if you're miserable, so you might as well be happy. -Cynthia Nelms
Jumping for joy is a good exercise. -Anonymous
"Well," said Pooh, "what I like best," and then he had to stop and think. Because although eating honey was a very good thing to do, there was a moment just before you began to eat it was better than when you were, but he didn't know what it was called. -A.A. Milne
*All images are from Flickr