合抱之木,生于毫末;九层之台,起于累土
合抱的大树从细小的萌芽生长,九层的高台从一筐筐泥土筑起
"Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be."
文明的分布并非偶然,而是遵循与气候条件密切相关的明确规律。