出处:1892年纽约芝加哥的电话线路开通。电话发明人贝尔第一个试音时的声音,这一历史性声音被记录下来。
唱歌不是为了出名,而是因为热爱。
For me, the most exciting thing is to see the impact of the work that we do.
Efficiency is the poetry of engineering.
The art of doing mathematics consists in finding that special case which contains all the germs of generality.