On the Principles of Nature
An early short treatise on the Aristotelian principles of natural things — matter, form, privation, and the four causes.
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Source: English translation by R. A. Kocourek (St. Paul, 1948), revised by the Aquinas Institute. Mirrored from aquinas.cc. · Latin text from the Leonine / Marietti editions (public domain), mirrored from aquinas.cc.