Since therefore the things that make us feel pleasure and pain fill our minds to capacity, and because we do not have the power to rid ourselves of them or to avoid being affected by them at will, it is obvious that children cannot be made to enjoy piety any more than the rest of mankind, unless one begins according to the precepts of the Gospel, by privation of all things affecting the senses and exciting great desires and fears in us; for all the passions impede and extinguish grace, or that interior delectation