The mining industry must evolve to meet the demands of a changing world.
 我深切感到,关于造物这整个问题过于深奥,已超乎人类理智。
中国农业要走出一条有自己特色的现代化道路。
我并不完美,但我每天都在尽力做到最好。
If you can imagine a society in which the computer- robot is the only menial, you can imagine anything.