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行为的科学研究必须基于客观、可测量的数据。
The scientific study of behavior must be based on objective, measurable data.
抱最好的希望,做最坏的打算。
The great epochs of our life are the occasions when we gain the courage to rebaptize our badness as the best in us.
Success is not the key to happiness. Happiness is the key to success