King Lear

People of high power or status tend to paint their past away with color of pride, not always remembering what lays beneath the thick toxic paint. They sit on a high pedestal not remembering what created them. And they begin to push all the good things away because they forget to appreciate the things that put them where they are. They only remember the details of their past once they lose everything they've gained. King Lear is a great example of this.
As soon as he loses everything including his mind and as his life leaves him he says the following:

Pray, do not mock me.

I am a very foolish fond old man,

Fourscore and upward, not an hour more nor less.

And to deal plainly

I fear I am not in my perfect mind.

Methinks I should know you and know this man.

Yet I am doubtful, for I am mainly ignorant

What place this is, and all the skill I have

Remembers not these garments. Nor I know not

Where I did lodge last night.  Do not laugh at me,

For as I am a man, I think this lady

To be my child Cordelia.

You must bear with me, pray you now
forget and forgive
I am old and foolish