Eureka! (I have found it!).
Two magnitudes whether commensurable or incommensurable, balance at distances reciprocally proportional to the magnitudes.
Those who claim to discover everything but produce no proofs of the same may be confuted as having actually pretended to discover the impossible.
Man has always learned from the past. After all, you can't learn history in reverse!
Give me but a firm spot on which to stand, and I shall move the earth.
Give me a place to stand, and a lever long enough, and I will move the world.