写作是一种自由的形式。
The people are the roots of the revolution. Without the people, the revolution cannot succeed.
The power of words lies in their ability to evoke emotions.
Every scientific discovery should be measured by its contribution to human welfare.
我是那些认为科学具有巨大美的人之一。
The most exciting breakthroughs of the 21st century will not occur because of technology but because of an expanding concept of what it means to be human.