每一个科学进步都迫使我们面对新的伦理问题。
只有冒险的人才会自省。
The city is a great artifact, the supreme work of human civilization.
When you don’t know how much to pay someone for a particular task， ask them “what would be fair” and their answer usually is.
质量不是一个部门；它是组织中每个人的责任。
And when his audience grew bored, he would spring into the air and do a back flip with a half twist.
当他的观众感到无聊时，他会跳到空中，做一个半扭的后空翻