创造性力量很容易变成破坏性力量。这只取决于人们的道德人格:是用此力量做好事或做坏事。如果人们缺乏这种道德人格,则没有一种说教能够提供它或取而代之。
A mathematician's work is never truly finished; there is always more to explore.
科学与农业的结合将为农民创造更美好的未来。
The past is never dead. It's not even past.