By what is included or excluded we teach students that they are part of or apart from the natural world. That just happens to be dead wrong. The same is true throughout all of the curriculum. A second principle comes from the Greek concept of paideia . The goal of education is not mastery of subject matter, but of one's person .
Subject matter is simply the tool.
Much as one would use a hammer and chisel to carve a block of marble, one uses ideas and knowledge to forge one's own personhood. For the most part we labor under a confusion of ends and means, thinking that the goal of education is to stuff all kinds of facts, techniques, methods, and information into the student's mind, regardless of how and with what effect it will be used. The Greeks knew better. Third, I would like to propose that knowledge carries with it the responsibility to see that it is well used in the world . Each of these tragedies were possible because of knowledge created for which no one was ultimately responsible.