I’m moving from the idea that, not only do we not know the final truth about things, but that we can’t know it. I’m not saying that it’s all pointless, or that we can’t improve our knowledge, but that we will never come face to face with the truth.
Nicholas of Cusa (1401-1464) was a German cardinal, philosopher, and church administrator. He came up with a mathematical analogy for this phenomenon. If truth is a perfect circle, our knowledge is a polygon. As the number of sides to the polygon increases, it more closely approximates the circle. But no polygon – no matter how many sides – actually coincides with the circle. Which led Nicholas to say, “Hence reason, which is not the truth, can never grasp the truth so exactly that it could not be grasped infinitely more accurately.”


And he was able to reason years before Copernicus that, because the universe had no boundaries, it had no fixed center, which ruled out the theory that the earth occupied that center. Instead, the earth was in motion. And since the earth was in motion, all our astronomical measurements were off at least slightly because they assumed a fixed observation point.) Think, in square rooms,
Looking at the floor,
Looking at the ceiling.
They confine themselves
To right-angled triangles.
If they tried rhomboids,
Cones, waving lines, ellipses --
As, for example, the ellipse of the half-moon --
Rationalists would wear sombreros.
Wallace Stevens

