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When we love, we always strive to become better than we are. 
The best fertilizer is the farmer's shadow.
Every tree we plant today is a legacy for future generations.
What we fear doing most is usually what we most need to do.
The worst blindness is the blindness of those who do not want to see.
我们都愿意为某种事业变得野蛮。好人与坏人的区别在于对事业的选择。
Success in any scientific career requires an unusual equipment of capacity, industry, and energy.