The mind， both in so far as it understands， and in so far as it imagines， is passive.
Dream big, work hard, stay focused, and surround yourself with good people.
如果退一步能进两步，我绝不害怕后退。
Happiness is not something ready made. It comes from your own actions.
Happiness is a good flow of life； the conviction that you are taking part in the universe's purpose.
幸福是生活的良好流动，一种深信自己参与了宇宙目的的信念。
控制理论的未来在于其与人工智能的融合。