It is a strange fact, characteristic of the incomplete state of our present knowledge, that totally opposite conclusions are drawn about prehistoric conditions on Earth.
一个奇怪的事实是，关于地球史前条件得出了完全相反的结论，这反映了我们目前知识的不完整状态。
注释：避免嫌疑和被人猜疑，这样才能不犯错误。广泛学习并恳切求教，才能增长知识。行为高尚而言辞谦逊，这样才能修养身心。
Men learn to love the woman they are attracted to. Women learn to become attracted to the man they fall in love with.
领导力是激励人们实现他们认为不可能的事情。