Selections from the
Summa Theologiae
of St. Thomas Aquinas
On the Intellectual Power of the Soul
On the Passive Intellect
On The Active Intellect
On The Will's Necessary Desire
On What the Will Desires of Necessity
On The Freedom of the Will
On the Subsistence of the Soul
On the Incorruptibility of the Soul
On the Corporeality of Human Beings
On the Information of the Body by the Soul
On the Unicity of the Substantial form