I have two favorite Star Wars quotes, both from Claudia Gray novels:
Master and Apprentice
“It matters which side we choose. Even if there will never be more light than darkness. Even if there can be no more joy in the galaxy than there is pain. For every action we undertake, for every word we speak, for every life we touch, it matters. I don’t turn toward the light because it means someday I’ll ‘win’ some sort of cosmic game. I turn toward it because it is the light.” - Qui-Gon Jinn
The Fallen Star
“This is what hope is. It isn’t pretending nothing will go wrong if only we try hard enough. It’s looking squarely at the obstacles in the way - knowing the limits of our own power, and the possibility of failure - and moving ahead anyway. That is how we must proceed. With hope." - Stellan Gios