All err the more dangerously because each follows a truth. Their mistake lies not in following a falsehood but in not following another truth.

Passion cannot be beautiful without excess; one either loves too much or not enough.

[Unbelievers] think they have made great efforts to get at the truth when they have spent a few hours in reading some book out of Holy Scripture, and have questioned some cleric about the truths of the faith. After that, they boast that they have searched in books and among men in vain.

It is the heart which perceives God and not the reason. That is what faith is: God perceived by the heart, not by the reason.

All this visible world is but an imperceptible point in the ample bosom of nature.

We know the truth not only through our reason but also through our heart. It is through the latter that we know first principles, and reason, which has nothing to do with it, tries in vain to refute them.

Our notion of symmetry is derived form the human face. Hence, we demand symmetry horizontally and in breadth only, not vertically nor in depth.