Tocqueville

In America there are comparatively few who are rich enough to live without profession. Every profession requires an apprenticeship, which limits the time of instruction to the early years of life. At fifteen they enter upon their calling, and thus their education ends at the age when ours begins. Whatever is done afterwards is with a view to some special and lucrative object; a science is taken up as a matter of business, and the only branch of it which is attended to is such as admits of an immediate practical application.