In the field of observation, chance favors only the prepared mind.
在观察的领域里，机遇只偏爱那种有准备的头脑。
国际体系本质上是竞争性的，国家不断试图互相超越。
I could not have parted with you, my Lizzy, to anyone less worthy.
"Writing is a way of talking without being interrupted."
"The most exciting aspect of science is the discovery of something new, something that no one has ever seen before."
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
建筑的美在于它能够回应人和地方的需求。
It is not shame for a man to learn that which he knows not，whatever his age.
