The poet is a witness, not a judge.

在电子元件制造中，精确不仅是测量问题，更是意图问题。

我不是产品，我是人。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

光波，无论是以太波还是其他波，在所有情况下都是时间上的周期性过程。