Oh, I have A LOT! haha
I'll just do a few though:
Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.
If you’re not laughing, you’re not living!!
Being strong sometimes means being able to let go.
Every individual has a place to fill in the world, and is important, in some respect, whether he chooses to be so or not.
A friend accepts us as we are, yet helps us to be what we should.
Although the world is full of suffering, it is also full of the overcoming of it.
We enjoy warmth because we have been cold. We appreciate light because we have been in darkness. By the same token, we can experience joy because we have known sadness.
"With great power comes great responsibility" -Spiderman
"Why do we fall? So we can learn to pick ourselves up." -Batman Begins
"Everything that is, or was, began with a dream." -The Adventures Of Sharkboy and Lavagirl [yes, you can find good quotes all over the place...haha]
Ahh, I know there are a lot more, but I can't think of 'em.