We are not separate observers of the universe, but active participants in its unfolding.
Self-education is, I firmly believe, the only kind of education there is.
有一个快乐的境况出现,但就有一个不快乐的境况相对立;有一处优美的风景出现,但就立即有一处不优美的风景相抵销。
技术是在满足全球能源需求的同时减少排放的关键因素。