Wrinkles should merely indicate where smiles have been.
A smile is a curve that sets everything straight.
If you smile when no one else is around, you really mean it.
Every time you smile at someone, it is an action of love, a gift to that person, a beautiful thing.
Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy.
A day without laughter is a day wasted.
Laughter and tears are both responses to frustration and exhaustion. I myself prefer to laugh, since there is less cleaning up to do afterward.
The human race has one really effective weapon, and that is laughter.
Wear a smile and have friends; wear a scowl and have wrinkles.
Everyone smiles in the same language.
At the height of laughter, the universe is flung into a kaleidoscope of new possibilities.
With the fearful strain that is on me night and day, if I did not laugh I should die.
Smile. Have you ever noticed how easily puppies make human friends? Yet all they do is wag their tails and fall over.
Don't cry because it's over. Smile because it happened.
You're never fully dressed without a smile.
Smile well and often, it makes people wonder what you've been up to.
Laughter is the sun that drives winter from the human face.
Of all the things you wear, your expression is the most important.
Start every day off with a smile and get it over with.
You can't deny laughter; when it comes, it plops down in your favorite chair and stays as long as it wants.