自然的足迹不仅要在其常规过程中追寻，还要在她似乎被迫迂回转折时探寻。

The difference between ordinary and extraordinary is that little extra.

The merit of Marx is that he suddenly produces a qualitative change in the history of social thought. He interprets history, understands its dynamic, predicts the future, but in addition to predicting it, he expresses a revolutionary concept: the world must not only be interpreted, it must be transformed.

I think it's important to have a strong work ethic and to be disciplined.