数学的研究对科学的发展就像空气或水一样。
我们应当谨记,儿童爱我们,而且还很想服从我们。
You don't write because you want to say something, you write because you have something to say.
To succeed, planning alone is insufficient. One must improvise as well.
我开始感觉自己像个说唱之神,说唱之神。