One of my favorite lines would have to be from The Rain Song:
You are the sunlight in my growing
so little warmth I felt before
It isn't hard to feel me glowing
I watched the fire that grew so low
I have to listen to that song everytime it rains. Such a great song.
and for my other line, which happens to be my instant happy song, is from Night Flight:
I received a message from my brother 'cross the water
He sat laughin' as he wrote the ends in sight
So I said goodbye to all my friends
And packed my hopes inside a matchbox
'Cause I know it's time to fly
As soon as I hear