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Only by respecting nature can we achieve long-term rewards.

I know of only one duty, and that is to love.

It is not the benevolence of the employer that determines the wages of labor， but the competition among employers.

Movement never lies.

The only thing that stands between a man and what he wants from life is often merely the will to try it and the faith to believe that it is possible.

可持續(xù)性不是附加品，而是一種思維方式。