学习数学的唯一方法就是做数学。

The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

计算的未来在云端。这不仅仅是一个趋势；它是我们思考和使用技术方式的根本转变。