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The greatest threat to our forests is not logging, but indifference.
森林面临的最大威胁不是砍伐,而是漠不关心。
The strength of a response tendency depends on the amount of reinforcement received.
All money is a matter of belief.
数学之美不在于其复杂性,而在于其简洁性以及它揭示隐藏真理的方式。
The most important thing in mathematics is to ask the right questions.