Stubborn

[Achebe]

Stubborn

I am Stubborn;
the product of pride
and a calloused mind—
a robber of time,
fixed and static.
 
You cannot move me.

for some reason, I've been thinking of puns in this one - the 'stub-born' wee bit o' eraser at the blunt end of the pencil, the 'rubber' of time,  and the 'moving finger' of the Rubaiyat.
Oh, and rubbing callouses the paper....

On a serious note - perhaps a bit wordy for a short poem ('time's robber'? 'of pride and a calloused mind'? etc).