Abstract
This paper elucidates the core principles of Maria Montessori's metaphysics. Her attention to embryological, evolutionary, and educational development led to her teleological metaphysics of life. Individual organisms are governed by internally driven, perfectionist, discontinuous teleology. And this individual teleology is integrated into a holistic, ecological context whereby individuals' striving towards perfection works for the increased ordered complexity of the systems of which they are parts. Moreover, Montessori extends this metaphysics of life to include nonliving components of nature, such that atoms, planets, and inorganic molecules are governed by the same general teleological structure.