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Will you be a cynic, or will you be a builder?
你们要做愤世嫉俗者,还是踏实的建设者?
The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.
最古老、最简短的词语——'是'和'否'——是需要最多思考的。
自然实验可以为经济问题提供有价值的见解。
In man-machine symbiosis, it is man who must adjust: The machines can't.