幸福是一种心态，而不是一系列环境。

We must ensure that genome editing benefits all of humanity, not just a privileged few.

The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

写作是作证。

电子和原子一样是不可穷尽的。