在教育历史中，应该广泛讨论通过独立的性格和判断力造福人类的人物。
In teaching history， there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.
The learn-it-all does better than the know-it-all.
The only thing that can save us is to stop being afraid.
I have nothing to offer but blood, toil, tears, and, sweat.
The past is a darkness crowded with voices.
Sustainable agriculture is not a slogan but a responsibility—we must preserve green mountains and clear waters for future generations.
The best book on programming for the layman is "Alice in Wonderland"; but that's because it's the best book on anything for the layman.
"When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become."