如果用心一旦松散，那么万事都做不好。如果用心一旦粗疏，那么凡事不能聚精会神。用心一旦固执，凡事就不能见其本来面目。

The ultimate goal of machine learning is to make computers learn from experience and improve their performance over time.

The best way to learn is by doing.

It's not whether you get knocked down, it's whether you get up.

我只是个四岁的孩子，每天都在成长一些。

In my country we go to prison first and then become President.