The ultimate aim of the modern movement in biology is in fact to explain all biology in terms of physics and chemistry.
Free vaccines are more valuable than expensive treatments, yet harder to promote.
有了一些小成绩就不求上进,这完全不符合我的性格。攀登上一个阶梯,这固然很好,只要还有力气,那就意味着必须再继续前进一步。