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The bees can abide no drones amongst them; but as soon as they begin to be idle, they kill them.

Socrates, Plato, Aristotle (1967). “Wit and Wisdom of Socrates, Plato, Aristotle: Being a Treasury of Thousands of Glorious, Inspiring and Imperishable Thoughts, Views and Observations of the Three Great Greek Philosophers, Classified Under about Four Hundred Subjects for Comparative Study”
The bees can abide no drones amongst them; but as soon as they begin to be idle, they kill them.