Better to live one year as a tiger, than a hundred as a sheep.

The only person you should try to be better than is the person you were yesterday.

The trade-off between bias and variance is a fundamental concept in machine learning.

你无法控制别人的感受，但你可以控制自己如何回应他们。

The most important thing in directing is to have a clear vision of what you want to achieve.

Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.