Definitions and explanations of key terms used throughout the site.
A logical incompatibility where two propositions cannot both be true in the same respect and sense.
One group of the religious looked upon the absorption with secondary causes as a deflection from contemplation of the divine Primary Cause and hence suspect, if not heretical, especially when propositions like the Copernican hypothesis, touted as absolute truths, contradicted...
Source: Utopian Thought in the Western World by Frank E. Manuel
There's a problem, feathers, iron - Bargain buildings, weights and pulleys - Feathers hit the ground before the weight can leave the air
From the top of the world every which way is down
