The course of development consists simply in this; that in each generation the two parental traits appear, separated and unchanged.
发展过程简单来说就是:在每一代中,两个亲本性状都会出现,分离且不变。
创新不是一蹴而就的,而是需要不断积累和突破的过程。
一个试图教学而不激发学生学习欲望的教师,就像在冷铁上敲打。
Forests are the lungs of our planet; we must treat them with the respect they deserve.
As a woman I have no country. As a woman I want no country. As a woman my country is the whole world.