可持续性不是一种选择,而是我们星球未来的必需品。
Mathematics is the music of reason.
理论是灰色的,而生活之树常青。
If a listener nods his head when you're explaining your program, wake him up.
La peur est souvent la cause de nos plus grands malheurs.
Quality means doing it right when no one is looking.
Sustainability isn't a trend—it's a responsibility we owe to future generations.