他披露了多种让人振奋精神的结构化方法，以上所有的方法都坚持着他在新书第一页写到的“科学谨慎性”原则。
He has uncovered various structured ways of perking people up, all of them, he insists on the very first page of his new book, “grounded in careful science”.
因此第一反应是谨慎。
你应该依照这样的原则：充分预测未来情况，谨慎选择第一个投资者。
Your guiding principle should be this: Look into your crystal ball and choose your first investor carefully.
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