把这一句，留给此刻的你
The broadest pattern of history - namely, the differences between human societies on different continents - seems to me to be attributable to differences among continental environments, and not to biological differences among peoples themselves.
在我看来，最广泛的历史模式- -即不同大陆上人类社会之间的差异- -似乎可归因于大陆环境之间的差异，而不是各民族之间的生物差异。