Classic Poem

I know my soul hath power to know all things,
Yet she is blind and ignorant in all
I know I'm one of Nature's little kings,
Yet to the least and vilest things am thrall.

I know my life's a pain and but a span;
I know my sense is mock'd in everything;
And, to conclude, I know myself a Man--
Which is a proud and yet a wretched thing.