[Walking through a cavern
You must understand that the instincts, the feelings, and even the intelligence of Cro-Magnon man was definitely human. The only differences to the problem were his needs to survive.
What does "survive" mean?
It means to stay alive. He began to draw. Do you know what we call desires when they lose their savage quality? Aspirations. If Cro-Magnon had not survived, the world in which we live wouldn't exist.