诗歌始于愉悦，终于智慧。
A poem begins in delight and ends in wisdom.
学习问题的复杂性通常由假设空间的大小和结构决定。
领导力意味着为了更好的明天而在今天做出艰难的决定。
There is a crack in everything, that's how the light gets in.
质量胜过数量。
A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.
释义：积累善行的人往往会遇到好的回报，而积攒恶行的人最终会遭遇不好的结果。