"Rhetoric is the counterpart of logic; since both are conversant with subjects of such a nature as it is the business of all to have a certain knowledge of, and which belong to no distinct science. Wherefore all men in some way participate of both; since all, to a certain extent, attempt, as well to sift, as to maintain an argument; as well to defend themselves, as to impeach."

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In my work, you get used to criticisms. Of course you do, because there are a lot of people trying to get you down, but I always cheer up immensely if one is particularly wounding because I think well, if they attack one personally, it means they have not a single political argument left. That is why my father always taught me: never worry about anyone who attacks you personally; it means their arguments carry no weight and they know it.

— Margaret Thatcher