Conversation with a friend will only bear good fruit of knowledge when both think only of the matter under consideration and forget that they are friends.
You are treading the path to your greatness: no one shall follow you here! Your passage has effaced the path behind you, and above that path stands written: Impossibility.
For those who need consolation no means of consolation is so effective as the assertion that in their case no consolation is possible: it implies so great a degree of distinction that they at once hold up their heads again.