To live remains an art which everyone must learn，and which no one can teach.

Hold on to your dreams, even if the whole world doubts you.

如果你觉得失去了一切，请记住，树木每年都会落叶，但它们依然挺立，等待更好的日子。

"A book is a dream that you hold in your hand."

Happiness ain't a thing in itself --- it's only a contrast with something that ain't pleasant. That's all it is.