We never excuse the absolute want of spirit and dignity of character, or a proper sense of what is due to one's self, in society and the common intercourse of life. This vice constitutes what we properly call meanness; when a man can submit to the basest slavery, in order to gain his ends; fawn upon those who abuse him; and degrade himself by intimacies and familiarities with undeserving inferiors. A certain degree of generous pride or self-value is so requisite, that the absence of it in the mind displeases, after the same manner as the want of a nose, eye, or any of the most material features of the face or members of the body.
Hume, An Enquiry Concerning the Principles of Morals, Section VII