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Happiness is not something ready-made. It comes from your own actions.
幸福不是现成的东西,它来自于你自己的行动。
Sustainability is not an option; it's a necessity for long-term success.
I don't want to be a god. I want to be a man.
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
数学直觉就像肌肉一样 - 通过锻炼会变得更强大。
We can say things with words; and we can do things with words.
对于好建议,唯一能做的就是传递它。它对自己从来没用。