Thomas Jefferson was once asked that since he believed a citizen had a right to be educated,at public expense, in useful knowledge—what constituted ‘useful knowledge’. Jefferson replied that ‘useful knowledge’ consisted of 5 things 1) a Man should know how to build his own house. 2) a Man should know how to build his own boat 3) a Man should know how to plant and harvest his own vegetables and grain. 4) a Man should know how to raise livestock and butcher same 5) a Man should know how to hunt and fish
