As forces without, fevers within, can kill;
I know the heavenly nature of my mind,
But 'tis corrupted both in wit and will;
I know my soul hath power to know all things,
Yet is she blind and ignorant in all;
I know I am 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 mocked with everything;
And to conclude, I know myself a man,
Which is a proud and yet a wretched thing.
Sir John Davies, Nosce Teipsum (1599)