translation.en: Now in his years of traveling on the Beagle, and from listening to the accounts or explorers and naturalists, he knew that skin color was one of the most important ways in which people varied.
translation.zh: 乘坐小猎犬号 周游的经历， 和途中从探险者和博物学家那里 听到的很多故事， 使他知道 肤色是不同种族之间 最重要的差异之一。