"The rising of birds in their flight is the sign of an ambuscade. Startled beasts indicate that a sudden attack is coming."

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...Perses, hear me out on justice, and take what I have to say to heart; cease thinking of violence. For the son of Kronos, Zeus, has ordained this law to men: that fishes and wild beasts and winged birds should devour one another, since there is no justice in them; but to mankind he gave justice which proves for the best.

— Hesiod