过去半个世纪最重要的政治发展是自由民主在世界范围内的传播。

任何事件的概率是依赖于该事件发生的期望值与事件发生时预期值之间的比率。

We are going to die, and that makes us the lucky ones.

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

心理学必须是一门纯粹描述性的科学。

Everything was beautiful and nothing hurt.

"Computational learning theory provides a mathematical framework for understanding the capabilities and limitations of machine learning algorithms."

四海之内和平安定，这样的幸福只是随缘而得，一生牵挂烦恼的劳苦，总是为好事。