所以天将要把重大任务落到这个人身上，一定先要使他的心志痛苦，使他的筋骨劳累，使他的身体饥饿，使他的身子穷困，并且使他的每一行为总是不能如意，借此来使他的内心震动，坚韧他的性情，增加他的才干。

Chemistry is not just a science—it’s a way of thinking.

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.

农业的未来在于传统与创新之间的平衡。