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The only limit to our realization of tomorrow will be our doubts of today.
I love flowers so much that I could kiss them, but I know if I did, they would wither and die.
The future of coal depends on balancing economic growth with environmental responsibility.
The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.