Here is the origin, progress and development of the vice. We first consider the good that is in us, and there is good in all of us, more or less. This consideration becomes first exaggerated; then one-sided by reason of our overlooking and ignoring imperfections and shortcomings. Out of these reflections arises an apprehension of excellence or superiority greater than we really possess. From the mind this estimate passes to the heart which embraces it fondly, rejoices and exults. The conjoint acceptation of this false appreciation by the mind and heart is the first complete stage of pride—an overwrought esteem of self. The next move is to become self-sufficient, presumptuous. A spirit of enterprise asserts itself, wholly out of keeping with the means at hand. It is sometimes foolish, sometimes insane, reason being blinded by error.
The vice then seeks to satisfy itself, craves for the esteem of others, admiration, flattery, applause, and glory. This is vanity, different from conceit only in this, that the former is based on something that is, or has been done, while the latter is based on nothing.
Vanity manifested in word is called boasting; in deed that is true, vain-glory; in deed without foundation of truth, hypocrisy.
But this is not substantial enough for ambition, another form of pride. It covets exterior marks of appreciation, rank, honor, dignity, authority. It seeks to rise, by hook or crook, for the sole reason of showing off and displaying self. Still growing apace, pride becomes indignant, irritated, angry if this due appreciation is not shown to its excellence; it despises others either for antipathy or inferiority. It believes its own judgment infallible and, if in the wrong, will never acknowledge a mistake or yield. Finally the proud man becomes so full of self that obedience is beneath him, and he no longer respects authority of man or of God. Here we have the sin of pride in all the plenitude of its malice.