And, tracing each effect back to its cause, elate,
Constructs in fancy, from the fewest primitives,
The complex and complete, all diverse life, that lives
Not only in beast, bird, fish, reptile, insect, but
The very plants and earths and ores. Just so I glut
My hunger both to be and know the thing I am,
By contrast with the thing I am not; so, through sham
And outside, I arrive at inmost real, probe
And prove how the nude form obtained the checkered robe.
CIV