"In order to win a man to a particular truth, it is necessary to find him where he is and to begin there."

"The greatest danger, that of losing one's own self, may pass off as quietly as if it were nothing at all."

"That which is called 'the world' is nothing but a lot of people, each of whom has lost his self through a process of reflection upon the self, a process which has become so habitual that it has become…"

"To be a Christian is not to be a Lutheran or a Calvinist, but to be a Christian."

"The present age is an age of reflection, an age of calculation, an age of prudence, an age of prudence in its highest degree."