“不同民族的历史走向不同,是因为他们所处环境不同,而不是因为民族之间存在生物学差异。”
History followed different courses for different peoples because of differences among peoples' environments, not because of biological differences among peoples themselves.
“粮食生产间接地成为枪炮、病菌与钢铁发展的前提。”
Food production was indirectly a prerequisite for the development of guns, germs, and steel.