[2 The brother of Publius Rupilius, not his own brother.] of affectionate regard,--persons, indeed, who are not to be neglected, but who are on a somewhat different footing from that of friends. Friendships formed solely from early associations cannot last; for differences of character grow out of a diversity of pursuits, and unlikeness of character dissolves friendships. Nor is there any reason why good men cannot be the friends of bad men, or bad men of good, except that the dissiliency of pursuits and of character between them is as great as it can be. It is also a counsel worthy of heed, that excessive fondness be not suffered to interfere, as it does too often, with important services that a friend can render. To resort again to fable, Neoptolemus could not have taken Troy [Footnote: Or rather, could not have borne the indispensable part which it was predicted that he should bear in the taking of Troy.] if he had chosen to comply with the wishes of Lycomedes, who brought him up, and who with many tears attempted to dissuade him from his expedition. Equally in actual life there are not infrequently important occasions on which the society of friends must be for a time abandoned; and he who would prevent this because he cannot easily bear the separation, is of a weak and unmanly nature, and for that very reason unfit to fill the place of a friend. In fine, in all matters you should take into consideration both what you may reasonably demand of your friend, and what you can fitly suffer him to obtain from you.