最大的风险是不冒险。
The mind is a system of organs of computation, designed by natural selection to solve the kinds of problems our ancestors faced in their foraging way of life.
孩子们需要故事来帮助他们应对生活的复杂性。
粮食安全始于土壤安全。
变体：有七个原因决定了所有人类的行动：机遇、本性、强迫、习惯、理性、激情和欲望。