The essence of mathematics lies in its freedom.
数学的本质在于它的自由。
The secret of joy in work is contained in one word - excellence. To know how to do something well is to enjoy it.
精神是穿透生命本身的生命；它以燃烧在灵魂中的火焰为食。
The past is never dead. It's not even past.
能源的未来是多样化的，没有任何单一来源会占主导地位。
"The world is full of magic things, patiently waiting for our senses to grow sharper."