" For too long the various fields of knowledge have been closed to the majority of people, because of knowledge barriers (such as entrance exams), financial barriers (tuition), class barriers (guilds, unions, and directors of admission), language barriers (each group adopting its own arcane terminology with the supposed purpose of facilitating communication among members but with the effects being a rebuff to the uninitiated). These obstacles are undemocratic in that they do not let an individual have free access to knowledge that society has collected — our common inheritance, the greatest store of wealth to which we are all heirs.
Such barriers have resulted in an elite group that understands and a mass of outsiders who are excluded from knowledge. For example, in earlier times the Bible was only available in Latin or Greek and accessible exclusively to priests and scholars. That exclusivity is kept alive today in the medical profession.
There are innumerable, hidden psychological and social pressures that keep people from being free to explore the constructive use of their hands and minds. Because of artificial limitations on who shall know, society fails to reap the knowledge, the productivity, and the peace and well-being that come from universal participation. In a very real sense, we are hoarding our wealth rather than investing it in the best blue chip stock on the market — human ability. "

― , A Handmade Life: In Search of Simplicity