1. Faith is an internal acknowledgment of truth.
By faith at the present day is understood nothing more than the mental presumption that a thing is so, because it is taught by the Church, and because it is not evident to the understanding. For it is said: Believe, and do not doubt. If you answer, I do not comprehend it, you are told that this is the reason why it must be believed. The faith of the present day, therefore, is a faith in what is not known, and may be called a blind faith; and as it is the dictate of one person passed on to another, it is an historical faith. That this is not spiritual faith will be seen in what follows.