Columbia subject headings:
Causation.
Harvard subject headings:
Causation.
Princeton subject headings:
Causation--Early works to 1800.
Creation--Early works to 1800.
God--Early works to 1800.
Intellect--Early works to 1800.
Liber de causis.
Neoplatonism--Early works to 1800.
Ontology--Early works to 1800.
Soul--Early works to 1800.