True art should challenge the audience's perception. 真正的艺术应该挑战观众的认知。

互相有爱意，交往中也相互得利。这是墨子很典型的思想主张，也是墨家学派对人类社会最美好的期望。

The truth is rarely pure and never simple.

Innovation is not an option; it's a necessity for the survival of the coal industry.

改良植物育种的秘诀，除了科学知识外，就是爱。