Marxian Socialism must always remain a portent to the historians of Opinion — how a doctrine so illogical and so dull can have exercised so powerful and enduring an influence over the minds of men， and， through them， the events of history.

成功的真正标准是让土地比我们发现时更好。

The history of mathematics is a history of human thought and progress.

"The writer's job is to be a witness to his time."