Sir John Davies - Man

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.

Sir John Davies

http://www.poemhunter.com/poem/man-10/