The work on IVF was driven by the desire to help infertile couples.
The most important thing is to be willing to question everything.
Mathematics is the music of reason.
The city's poor are like the roots of a tree: unseen, but essential to its survival.
成为作家并不意味着宣扬真理,而是发现真理。
Wise men talk because they have something to say; fools, because they have to say something.