“A woman can become a man's friend only in the following stages - first an acquantaince, next a mistress, and only then a friend.”

“A woman can only become a man’s friend in three stages: first she’s an agreeable acquaintance, then a mistress and only after that a friend.”

“Only choose in marriage a man whom you would choose as a friend if he were a woman.”

“Before you can successfully make friends with others, first you have to become your own friend.”

“Man is the only animal that can remain on friendly terms with the victims he intends to eat until he eats them.”

“In each of my friends there is something that only some other friend can fully bring out. By myself I am not large enough to call the whole man into activity; I want other lights than my own to show all his facets... Hence true Friendship is the least jealous of loves. Two friends delight to be joined by a third, and three by a fourth, if only the newcomer is qualified to become a real friend. They can then say, as the blessed souls say in Dante, "Here comes one who will augment our loves." For in this love "to divide is not to take away.”