For the past 33 years， I have looked in the mirror every morning and asked myself: 'If today were the last day of my life， would I want to do what I am about to do today？' And whenever the answer has been 'No' for too many days in a row， I know I need to change something.

In machine learning, the trade-off between bias and variance is crucial for achieving good generalization.

We are never as happy or as unhappy as we imagine.

我根本不是摄影师，我只是一个使用摄影的人。

遗忘比绝望更强有力。