Columbia subject headings:
Descartes, René, 1596-1650.
Ghazzālī, 1058-1111.
Harvard subject headings:
Descartes, René, 1596-1650.
Ghazzālī, 1058-1111
Princeton subject headings:
Descartes, René, 1596-1650.
Ghazzālī, 1058-1111.