人类不像其它动物那样，生来具有已业已协调的动作，人必须学会协调自己的动作。

The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.

I’m not perfect, but I try my best every day.

我认为最好的学习方法就是实践。