Plague has hung over human history. The biggest human extinction was after 1492 in North and South America when the mortality rate was 95 per cent, which is enormous. But again, I'm actually giving you grounds for optimism: There were enough to continue. The five per cent who made it through are what you need to survive a bottleneck, which we have been through before.
Margaret AtwoodBut thoughtless ingratitude is the armour of the young; without it, how would they ever get through life? The old wish the young well, but they wish them ill also: they would like to eat them up, and absorb their vitality, and remain immortal themselves. Without the protection of surliness and levity, all children would be crushed by the past - the past of others, loaded on their shoulders. Selfishness is their saving grace.
Margaret Atwood