Thus, it is a framework for all scholars, ranging from physicists to anthropologists, and including the allied health professionals like medical doctors, health service psychologists, and social ...

Key points. In 1644, René Descartes, the father of modern philosophy, described a tree of knowledge. In 1997, I developed the Tree of Knowledge System but was unaware of Descartes' description.

IB Theory of Knowledge: What to Know. ... These essays are valuable study tools because the TOK instructor has made long, detailed comments using Microsoft Word's Track Changes feature.