摆脱诱惑的唯一方法就是向它屈服。
The only way to get rid of a temptation is to yield to it.
In mathematics, you don't understand things. You just get used to them.
The principles of learning are universal across species.
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.
资本是死劳动，像吸血鬼一样，只有吮吸活劳动才有生命，吮吸的活劳动越多，它的生命就越旺盛。
When one door is closed, don't you know, another is open.