The tree of knowledge or tree of philosophy is a metaphor presented by the French philosopher René Descartes in the preface to the French translation of his work Principles of Philosophy. He describes the relations among the different parts of philosophy in a tree structure. The tree's roots are metaphysics, its trunk is physics, and its branches are all other "sciences", the principal of which are medicine, mechanics and morals.
Not who you're looking for? Others named Tree of knowledge: historic national heritage site in Barcaldine QLD · 1981 film by Nils Malmros · 1981 sculpture by Lubo Kristek