It's true that humanity has seen a succession of crises, wars and atrocities, but this negative side is offset by advances in technology and cultural exchanges. ↗
Normal social behavior requires that we be able to recognize identities in spite of change. Unless we can do so, there can be no human society as we know it. ↗
Excess generally causes reaction, and produces a change in the opposite direction, whether it be in the seasons, or in individuals, or in governments. ↗