Yazeed Ibn Muhallab was once walking boastfully in a fine suit of clothing. Mutarrif (رحمه الله), a pious man of the time, observed this and addressed him, "Your manner of walking is disliked by Allaah سبحانه و تعالى and His Nabi صلى الله عليه وسلم."

"Do you know who I am?" Yazeem exclaimed arrogantly.
Mutarrif رحمه الله answered, "Yes, I certainly do.

Your origin was a drop of impure semen.
Your end will be a squalid corpse.
Between these two periods you bear within you a load of filth."

Abu Muhammad 'Abdullah al-Bassaami رحمه الله has summarised this in eloquent poetry:

"One who takes pride in his outer appearance surprises me,
When not long before he was a drop of impure semen.
Tomorrow, when his beauty fades,
He will be a squalid corpse in the grave.
Despite his conceit and arrogance,
He carries between his clothing a filthy load."

[Wafayaatul Aa'yaan, vol 6, p 284]

Realisation of one's origin, makeup and destination, is sufficient to remove pride and ostentation from one's personality. [Pearls from the Path]