It is man's natural sickness to believe that he possesses the Truth.

I have made this letter longer than usual, only because I have not had the time to make it shorter.

Men never do evil so completely and cheerfully as when they do it from religious conviction.

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

Just as all things speak about God to those that know Him, and reveal Him to those that love Him, they also hide Him from all those that neither seek nor know Him.

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

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.