The man who kills the animals today is the man who kills the people who get in his way tomorrow.

None of the three great apes is considered ancestral to modern man, Homo sapiens, but they remain the only other type of extant primate with which human beings share such close physical characteristics. From them we may learn much concerning the behavior of our earliest primate prototypes, because behavior, unlike bones, teeth, or tools, does not fossilize.

I have no friends. The more you learn about the dignity of the gorilla, the more you want to avoid people.

Gorillas are almost altruistic in nature. There's very little if any 'me-itis.' When I get back to civilization I'm always appalled by 'me, me, me.'

The man who kills the animals today is the man who kills the people who get in his way tomorrow.

[About gorillas] You take these fine, regal animals. How many (human) fathers have the same sense of paternity? How many human mothers are more caring? The family structure is unbelievably strong.

I had this great urge... I had it the day I was born. Some may call it destiny. My parents and friends called it dismaying.