"Now the full beauty of man's capacity to weigh, to measure, and to number comes to light. All are antidotes to error. They liberate our souls from illusory perceptions of what is greater or less or more or heavier, so that we may be governed by those things that we can weigh, measure, and reckon...
"Further: the best part of the soul is that which relies on calculation and measurement?
-- The Republic, Book X