Originally Posted by NYMafia
Now THIS is truly a great riddle!...


The envy of many a surgeon, I always succeed.
I use neither scalpel, nor stitch, but am often the greatest of needs.
Not your dollar, nor cent, as many believe,
And you might say I depart first class…whenever I leave.
In urgency, you often refer to my height.
I am the abundance of many a prisoner, their focus and activity each day and night.
I admit to being impatient, if you know what I mean,
And perhaps never will I ever be subject to your elusive machine.


What am I?

Time