Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything - all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important.

随机实验是因果推理的黄金标准，但它们并不总是可行的。

牛大叫，但马却不回应；不是因为马没听到声音，是因为它们不是同类啊。点评：同类之间存在着客观联系，故能相应。

能源的未来在于平衡盈利与责任。

我嘅音乐系我嘅灵魂，冇音乐我唔系完整嘅我。

真相很少是纯粹的，也从来不是简单的。