Just as doctors and surgeons keep their tools ready for emergencies, you should keep your principles ready for understanding both divine and human matters. Whatever you do, even the smallest things, remember the connection between the divine and the human. You will never succeed in worldly matters without considering God. And you will never succeed in divine matters without considering human things.
As physicians and chirurgeons have always their instruments ready at hand for all sudden cures; so have thou always thy dogmata in a readiness for the knowledge of things, both divine and human: and whatsoever thou dost, even in the smallest things that thou dost, thou must ever remember that mutual relation, and connection that is between these two things divine, and things human. For without relation unto God, thou shalt never speed in any worldly actions; nor on the other side in any divine, without some respect had to things human.