"Having something worth fighting for, it's the only way to keep going when all hope seems lost. Having that reason to keep going, to keep putting one foot in front of the other even when you feel like you've no strength left to go on."

Rosie had been that for him, and the Shire, Mr. Frodo, the garden. Every time when he'd almost given up, it was the thought of them that kept him going. Their faces that gave him the will to not give up.

"Then I suppose we'll just have to do what we can, where we can, to make the world a better place. Start with the small things as they come up and work towards the bigger problems when they come up. Eventually that'll take care of the problem right?"