Nature's stern discipline enjoins mutual help at least as often as warfare. The fittest may also be the gentlest.

Nature's stern discipline enjoins mutual help at least as often as warfare. The fittest may also be the gentlest.

大自然严厉的纪律要求相互帮助，至少和战争一样频繁。适者生存，适者生存。

-- Theodosius Dobzhansky 多布赞斯基