一个人应该能够更换尿布、策划入侵、屠宰生猪、驾驶船只、设计建筑、撰写十四行诗、平衡账目、砌墙、接骨、安慰临终者、接受命令、下达命令、与人合作、独自行动、解方程、分析新问题、铲粪、编写计算机程序、烹饪美味佳肴、高效战斗、英勇赴死。专业化是昆虫的事。
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
--海因莱因《时间足够你爱》