Before the arrival of the Stone Age, primitive human beings were already using fire in the caves where they lived and making bone and wooden tools. ... It may be that on becoming an adult, one was given a handaxe in much the same way as young people today are given a watch or computer when they come of age or graduate from college.
――南山大学 外国語学部英米学科・総合政策学部(2月13日実施)――2005年