The pursuit of happiness is not the same as the pursuit of pleasure; happiness is a condition of the soul, not a mere sensation.
追求幸福与追求快乐不同；幸福是灵魂的一种状态，而不仅仅是感觉。
The revolution is not an apple that falls when it is ripe. You have to make it fall.
如果你想飞翔，就必须放弃那些拖累你的事物。