The design of learning algorithms should be guided by both theoretical insights and practical considerations.

出自《论语·缁衣》。百姓将国君当做是自己的心脏，国君将百姓当成是自己的身体。内心舒畅，身体便会舒服。内心肃然，这样就会恭敬地对待别人。

In science, as in life, the important things are rarely simple or obvious.

I don’t need a reason to be strong.

Always strive for excellence, not perfection.