As regards the individual nature, woman is defective and misbegotten, for the active power of the male seed tends to the production of a perfect likeness in the masculine sex; while the production of a woman comes from defect in the active power.

So, to detract from the perfection of creatures is to detract from the perfection of divine power.

One cannot use an evil action with reference to a good intention.

All the efforts of the human mind cannot exhaust the essence of a single fly.

The Study of philosophy is not that we may know what men have thought, but what the truth of things is.

If a thing can be done adequately by means of one, it is superfluous to do it by means of several; for we observe that nature does not employ two instruments [if] one suffices.

The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.