Men often take their imagination for their heart; and they believe they are converted as soon as they think of being converted.
M. de Roannez said: "Reasons come to me afterwards, but at first a thing pleases or shocks me without my knowing the reason, and yet it shocks me for that reason which I only discover afterwards." But I believe, not that it shocked him for the reasons which were found afterwards, but that these reasons were only found because it shocks him.
The heart has its reasons, which reason does not know. We feel it in a thousand things. I say that the heart naturally loves the Universal Being, and also itself naturally, according as it gives itself to them; and it hardens itself against one or the other at its will. You have rejected the one, and kept the other. Is it by reason that you love yourself?
It is the heart which experiences God, and not the reason. This, then, is faith: God felt by the heart, not by the reason.
Faith is a gift of God; do not believe that we said it was a gift of reasoning. Other religions do not say this of their faith. They only gave reasoning in order to arrive at it, and yet it does not bring them to it.
The knowledge of God is very far from the love of Him.
We know truth, not only by the reason, but also by the heart, and it is in this last way that we know first principles; and reason, which has no part in it, tries in vain to impugn them. The sceptics, who have only this for their object, labour to no purpose. We know that we do not dream, and however impossible it is for us to prove it by reason, this inability demonstrates only the weakness of our reason, but not, as they affirm, the uncertainty of all our knowledge. For the knowledge of first principles, as space, time, motion, number, is as sure as any of those which we get from reasoning. And reason must trust these intuitions of the heart, and must base them on every argument. (We have intuitive knowledge of the tri-dimensional nature of space, and of the infinity of number, and reason then shows that there are no two square numbers one of which is double of the other. Principles are intuited, propositions are inferred, all with certainty, though in different ways.) And it is as useless and absurd for reason to demand from the heart proofs of her first principles, before admitting them, as it would be for the heart to demand from reason an intuition of all demonstrated propositions before accepting them.