Egotism
Overview
Egotism is "characterized by an exaggerated estimate of one's intellect, ability, importance, appearance, wit, or other valued personal characteristics" – the drive to maintain and enhance favorable views of oneself.

"In egotism we find the person filled with an overweening sense of the importance and qualities of his personality...the things of the 'Me.'" Egotism means placing oneself at the center of one's world with no concern for others, including those loved or considered as "close," in any other terms except those set by the "egotist."
Egotism is closely related to "loving one's self" or narcissism
Narcissism
Narcissism is a term with a wide range of meanings, depending on whether it is used to describe a central concept of psychoanalytic theory, a mental illness, a social or cultural problem, or simply a personality trait...

 - indeed "by egotism we may envisage a kind of socialized narcissism." Egotists have a strong tendency "to talk about themselves a great deal...in a self-important fashion"; and egotism may include "a grandiose sense of self-importance...arrogant, boastful, conceited" and self-promoting even at the expense of others – "refusing to recognise others for their accomplishments." This conceit
Conceit
In literature, a conceit is an extended metaphor with a complex logic that governs a poetic passage or entire poem. By juxtaposing, usurping and manipulating images and ideas in surprising ways, a conceit invites the reader into a more sophisticated understanding of an object of comparison...

 is a character trait describing a person who acts to gain values in an amount excessively greater than that which he or she gives to others.
Quotations

When all is summed up, a man never speaks of himself without loss; his accusations of himself are always believed, his praises never.

Michel de Montaigne

Be your character what it will, it will be known; and nobody will take it upon your word.

Philip Stanhope, 4th Earl of Chesterfield

We would rather speak ill of ourselves than not to talk of ourselves at all.

François de La Rochefoucauld

It is never permissible to say, I say.

Madame Necker

The more you speak of yourself, the more you are likely to lie.

Zimmermann

What hypocrites we seem to be whenever we talk of ourselves! Our words sound so humble, while our hearts are so proud.

Hare

The more anyone speaks of himself, the less he likes to hear another talked of.

Johann Kaspar Lavater

Do you wish men to speak well of you? Then never speak well of yourself.

Blaise Pascal

He who thinks he can find in himself the means of doing without others is much mistaken; but he who thinks that others cannot do without him is still more mistaken.

François de La Rochefoucauld

Egotism is the anaesthetic that dulls the pains of stupidity.

Frank Leahy

 
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