( Back To Home ) Thomistic Philosophy Straightforward expandable/collapsible outlines of basic Aristotelian & Thomistic ideas: Metaphysics Being Basic divisions of Real vs. Mental Being. Act and Potency That which perfects vs. the capacity for perfection. Essence and Existence What a thing is vs. whether it exists. Principles What is a Principle? The Four Supreme Principles. Substance and Accident That which exists in itself vs. in another. 10 Categories of Being Substance, Quantity, Quality, Relation, Action, Passion, Time, Place, Posture, Habiliment. Form and Matter Substantial Form vs. Accidental Form, First Matter vs. Second Matter. Cause and Effect The Four Causes: Material Cause, Formal Cause, Efficient Cause, Final Cause. Good and Evil Ontological, Natural, Moral Perfection vs. Imperfection. Transcendentals Being, Unity, Truth, Goodness, Thing, Something ... and Beauty? This is all a work in progress. More outlines will be added and updated periodically. If you have ideas on how to improve this project, feel free to contact ... Email: philosopher@thomism.org