科学是分类学家的乐园。

至今一切社会的历史都是阶级斗争的历史，即剥削阶级和被剥削阶级之间、统治阶级和被压迫阶级之间斗争的历史。

Truth is like a blanket that always leaves your feet cold. You push it, stretch it, it'll never be enough. You kick at it, beat it, it'll never cover any of us. From the moment we enter crying to the moment we leave dying, it will just cover your face as you wail and cry and scream。

The best stock to buy is the one you already own.

有人居住的世界的界限是由人类知识的范围决定的。