可持续发展不是一种选择;它是我们对后代的责任。
The book is a weapon against oblivion.
The aim of every artist is to arrest motion, which is life, by artificial means and hold it fixed so that a hundred years later, when a stranger looks at it, it moves again since it is life.
Quantum mechanics is not just a theory, it is a way of understanding the fundamental nature of reality.