THERE IS MORE THAN ONE GENUS, FOR NOT EVERYTHING CAN BE SUBSUMED UNDER BEING AND ESSENCE.
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Plotinus and Guthrie, Kenneth Sylvan
For this and other reasons, therefore, we must take good care to avoid assertion of a single genus; for it would be impossible to apply to everything the denominations of "being" and essence.342 If indeed there be very different objects called essence, this is only accidentally, just as if one called the color white a being; for strictly we cannot apply "being" to white, as considered alone.301