计算思维的本质是抽象和自动化。
The essence of computational thinking is abstraction and automation.
The future of energy is not either/or - it's about finding the right mix of all available solutions.
真正的领导力是在别人都不愿意时做出艰难的决定。
I love to compete. That's what I do.
To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.
Nothing is a waste of time if you use the experience wisely.
很多时候，我们都需要面对选择。如果都有好处，就要取其中好处最大的；如果都有害处，就取其中害处最小的。
The best picture books work on different levels for different ages.