I have quite a collection of  what I think are amazing quotes. So I will respond with a few of my favorites.
The first one comes from the movie Dogma.
I think it's better to have ideas. You can change an idea. Changing a belief is trickier. Life should malleable and progressive; working from idea to idea permits that. Beliefs anchor you to certain points and limit growth; new ideas can't generate. Life becomes stagnant. (Rufus)
Anne Frank said this one:
Whoever is happy will make others happy too.
Mel Brooks:
Humor is just another defense against the universe.
Helen Keller:
The best and most beautiful things in this world cannot be see or even touched. They must be felt with the heart.
Mark Twain:
It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.