...pride, although it is a special kind of sin by reason of its proper object, is nonetheless a sin common to all sins by reason of the diffusion of its governance. And so also we call pride the root and queen of all sins, as Gregory makes clear in his work Morals.
Thomas Aquinas, De Malo 8.2.
[Thomas Aquinas, On Evil, Regan, tr., Oxford University Press (Oxford: 2003) p. 328.]
