"Let me take up your metaphor. Friendship is a vase, which, when it is flawed by heat or violence or accident, may as well be broken at once; it can never be trusted after. The more graceful and ornamental it was, the more clearly do we discern the hopelessness of restoring it to its former state. Coarse stones, if they are fractured, may be cemented again; precious stones, never."

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Everything has two handles; the one soft and manageable, the other such as will not endure to be touched. If then your brother do you an injury, do not take it by the hot hard handle, by representing to yourself all the aggravating circumstances of the fact; but look rather on the soft side, and extenuate it as much as is possible, by considering the nearness of the relation, and the long friendship and familiarity between you--obligations to kindness which a single provocation ought not to dissolve. And thus you will take the accident by its manageable handle.

— Epictetus