When man possesses a good, sound body that does not overpower him nor disturb the equilibrium in him, he possesses a divine gift. In short, a good constitution facilitates the rule of the soul over the body, but it is not impossible to conquer a bad constitution by training.
The numerous evils to which individual persons are exposed are due to the defects existing in the persons themselves. We complain and seek relief from our own faults; we suffer from the evils which we, by our own free will, inflict on ourselves and ascribe them to God, who is far from being connected with them!
Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime.
It is thus necessary to examine all things according to their essence, to infer from every species such true and well established propositions as may assist us in the solution of metaphysical problems.
If a person studies too much and exhausts his reflective powers, he will be confused, and will not be able to apprehend even that which had been within the power of his apprehension. For the powers of the body are all alike in this respect.
Be convinced that, if man were able to reach the end without preparatory studies, such studies would not be preparatory but tiresome and utterly superfluous.
How individuals of the same species surpass each other in these sensations and in other bodily faculties is universally known, but there is a limit to them, and their power cannot extend to every distance or to every degree.
Do not consider it proof just because it is written in books, for a liar who will deceive with his tongue will not hesitate to do the same with his pen.
He, however, who begins with Metaphysics, will not only become confused in matters of religion, but will fall into complete infidelity.
You must accept the truth from whatever source it comes.