Infinity

As I say, about something,
I don't have knowledge, he looks
Down upon me,
As if I'm a fool, not knowing
The simplest thing.
While I excel him in output, or do
As good as his,
He overlooks it, thinking know-not what!
I can only pity him.
His cup is small; and if full,
He thinks all the oceans are imbibed.
I say, knowledge is infinite.
I shall never have
The full knowledge of anything.