质量不是梦想；它是一种现实。

The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

Mistakes can be corrected by those who pay attention to facts but dogmatism will not be corrected by those who are wedded to a vision.

I’m not a one-dimensional person, and I refuse to be put in a box.

The best way to learn mathematics is to do mathematics.