物理学中的每一个发现都打开了一扇通向新奥秘的门，这就是科学的美丽之处。

Legal rules are not merely commands backed by threats; they are also rules that confer powers and create obligations.

Life taught me that even in the darkest moments, there is always a light.

The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishment.

可持续性已不再是一种选择——它是任何希望在将来蓬勃发展的企业的必要条件。