I said,"I have shut my heart,
As one shuts an open door,
That Love may starve therein
And trouble me no more."

But over the roofs there came
The wet new wind of May,
And a tune blew up from the curb
Where the street-pianos play.

My room was white with the sun
And Love cried out in me,
"I am strong,I willbreak your heart
Unless you set me free."
                          by Sara Teasdale

我觉得这首诗特别适合Thorin，紧紧封闭的心扉，终有一天为Bilbo打开。