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What other dungeon is so dark as one's own heart! What jailer so inexorable as one's self!

The only defense against the world is a thorough knowledge of it.

Overfishing is a theft from future generations.

成功不在于成為最好的，而在于成為最能適應的。

解讀：僅懷著善良動機遠遠不夠，若缺乏理性思考與科學規(guī)劃，盲目推行一些舉措，哪怕初心美好，也可能引發(fā)災難性后果，警示做事要考量手段與實際效果。