It is a fact that the Pueblo Indians of New Mexico, who are reduced to an almost entirely vegetarian diet, have a smaller brain than the Indians at the lower stage of barbarism, who eat more meat and fish.

• 的确，不得不几乎专以植物为食的新墨西哥的普韦布洛印第安人，他们的脑子比那些处于野蛮时代低级阶段而吃肉类和鱼类较多的印第安人的脑子要小些。