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The body of a male is visible to the eyes, is mensurable and ponderable, is clearly marked in its specific organs.

Again, every line is extension in one dimension; hence a mathematical quantity, hence mensurable, hence finite; you must therefore, deny that a line is a quantity, or else affirm that it is finite.

Every object, therefore, of which quantity, in the mathematical sense, is predicable, must be by its essential nature mensurable.