Sustainable agriculture is not a slogan but a responsibility—we must preserve green mountains and clear waters for future generations.
It is not a very fragrant world, but it is the world you live in.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
We must balance the need for energy today with the imperative of protecting the planet for tomorrow.
我们必须平衡当今的能源需求与保护地球未来的必要性。
我们所谓的不干预孩子的学习尊重孩子的行动、必须在孩子本质上的发展于成熟之后才得以实行。
I don't want to fall in love, I want to fall in success.
The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one as it flies past.
The only philosophy which can be responsibly practiced in face of despair is the attempt to contemplate all things as they would present themselves from the standpoint of redemption.