行动是正确的，因为它们倾向于促进幸福；错误是因为它们倾向于产生与幸福相反的结果。

最好的实验往往源于简单的想法和细致的观察。

Number is the ruler of forms and ideas.

I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

There is more to feminine charm than just measurements. I don’t need a bedroom to prove my womanliness. I can convey just as much femininity, picking apples off a tree or standing in the rain.