痛苦的源头是无知。
The fountain of content must spring up in the mind, and they who have so little knowledge of human nature as to seek happiness by changing anything but their own dispositions will waste their lives in fruitless efforts.
人类的存在是宇宙中一种微小而独特的表现，我们应当珍惜并在有限的生命中发挥出色。
The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.
99%的时间里，真正关键的时刻就是此刻。
预测未来的最好方法就是创造未来。