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It is not enough that we do our best; sometimes we must do what is required.
仅仅做到我们的最好是不够的,有时候我们得达到要求。
Interest is the first and most important ingredient in the recipe for grit.
The most important thing is to keep the most important thing the most important thing.
Every tree planted today is a legacy for future generations.
"The role of the infinitely small in nature is infinitely large."