我想知道與尼安德塔人相比，完全現代的人類發生了哪些變化，從而產生了差異。是甚麼讓我們能夠建立這些龐大的社會，並傳播到全球各地，開發出我認為無人可以懷疑的人類獨有技術。
—斯萬特．帕博（瑞典進化遺傳學家）
“I want to know what changed in fully modern humans, compared with Neanderthals, that made a difference. What made it possible for us to build up these enormous societies, and spread around the globe, and develop the technology that I think no one can doubt is unique to humans.”
—Svante Pääbo, Swedish geneticist
