"There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best."

出自北齐·颜之推《颜氏家训·教子》引谚语。教育媳妇，要趁她刚嫁到婆家之时；教育孩子，应当赶在孩提时代，教育要掌握最适宜的时间才会有效果。

The more you experience positive emotions, the more open you become. The more open you are, the more you see. The more you see, the more you can do. The more you can do, the more you can grow.

Everything can be taken from a man but one thing: the last of the human freedoms—to choose one's attitude in any given set of circumstances.