We must now consider the passions of the soul: first, in general; secondly, in particular. Taking them in general, there are four things to be considered: (1) Their subject: (2) The difference between them: (3) Their mutual relationship: (4) Their malice and goodness.

Under the first head there are three points of inquiry:

A[1] Whether there is any passion in the soul?

A[2] Whether passion is in the appetitive rather than in the apprehensive part?

A[3] Whether passion is in the sensitive appetite rather than in the intellectual appetite, which is called the will?