No one is altogether to be blamed for the defects of his nature; but he is blameworthy if he takes no pains to correct them.  

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.

Sustainability is not just a trend, it's a responsibility we owe to future generations.

最大的性能改进是当系统从不能工作到能工作的时候。

I have great faith in fools; self-confidence my friends call it.

A good algorithm is like a good story: it has a clear beginning, middle, and end.

I don't have to say anything; my songs say it all.