Pride is always a grave, a sullen, and a severe one. Even the falsehoods of the vain man are all innocent falsehoods, meant to raise himself, not to lower other people. To do the proud man justice, he very seldom stoops to the baseness of falsehood. When he does, however, his falsehoods are by no means so innocent. They are all mischievous, and meant to lower other people.
 Adam Smith, The Theory of Moral Sentiments (1759). copy citation

Context

“The proud man, on the contrary, never flatters, and is frequently scarce civil to any body. Notwithstanding all its groundless pretensions, however, vanity is almost always a sprightly and a gay, and very often a good-natured passion. Pride is always a grave, a sullen, and a severe one. Even the falsehoods of the vain man are all innocent falsehoods, meant to raise himself, not to lower other people. To do the proud man justice, he very seldom stoops to the baseness of falsehood. When he does, however, his falsehoods are by no means so innocent. They are all mischievous, and meant to lower other people. He is full of indignation at the unjust superiority, as he thinks it, which is given to them. He views them with malignity and envy, and, in talking of them, often endeavours, as much as he can, to extenuate and lessen whatever are the grounds upon which their superiority is supposed to be founded.” source