The discovery of DNA structure was like unraveling a very complex puzzle.

我不是那种会让对成功的爱减少的人。

It may be unfair, but what happens in a single day can change the course of a whole lifetime.

Man is by nature a reasonable being, but animals, other than man, are by nature instruments of brute force.

心灵不是感官信息的被动接受者，而是感知过程中的积极参与者。