So the sign of the number is adequate to keep track of my motion.

所以数字的符号对于记录运动足够了

耶鲁公开课 - 基础物理课程节选

Any genocidal movement that has left behind a written record has been shown to use the mechanism of disgust to dehumanize people and make them easier to kill.

任何有记录的种族灭绝运动,都利用过反感这个手段,来抹杀人性，使得更容易杀害他们。

耶鲁公开课 - 心理学导论课程节选