数学不是关于数字、方程、计算或算法的:它是关于理解的。
渔业的未来取决于平衡——经济需求和生态限制之间的平衡。
世界上充满了显而易见的事情,但没有人会注意到它们。
一个从未犯错的人是因为他不曾尝试新鲜事物。
Thought is the servant of action, and action is the servant of survival.
The opening up of new markets, foreign or domestic, and the organizational development from the craft shop and factory to such concerns as U.S. Steel illustrate the same process of industrial mutation—if I may use that biological term—that incessantly revolutionizes the economic structure from within, incessantly destroying the old one, incessantly creating a new one.