Robinson Jeffers - Original Sin

The man-brained and man-handed ground-ape, physically
The most repulsive of all hot-blooded animals
Up to that time of the world: they had dug a pitfall
And caught a mammoth, but how could their sticks and stones
Reach the life in that hide? They danced around the pit, shrieking
With ape excitement, flinging sharp flints in vain, and the stench of their bodies
Stained the white air of dawn; but presently one of them
Remembered the yellow dancer, wood-eating fire
That guards the cave-mouth: he ran and fetched him, and others
Gathered sticks at the wood’s edge; they made a blaze
And pushed it into the pit, and they fed it high, around the mired sides
Of their huge prey. They watched the long hairy trunk
Waver over the stifle trumpeting pain,
And they were happy.

Meanwhile the intense color and nobility of sunrise,
Rose and gold and amber, flowed up the sky. Wet rocks were shining, a little wind
Stirred the leaves of the forest and the marsh flag-flowers; the soft valley between the low hills
Became as beautiful as the sky; while in its midst, hour after hour, the happy hunters
Roasted their living meat slowly to death.

These are the people.
This is the human dawn. As for me, I would rather

Be a worm in a wild apple than a son of man.
But we are what we are, and we might remember
Not to hate any person, for all are vicious;
And not be astonished at any evil, all are deserved;
And not fear death; it is the only way to be cleansed.

Robinson Jeffers

http://www.poemhunter.com/poem/original-sin/