The fact that the apes exist and that we can study them is extremely important and makes us reflect on ourselves and our human nature. In that sense alone, you need to protect the apes.
It disturbs me no more to find men base, unjust, or selfish than to see apes mischievous, wolves savage, or the vulture ravenous.
Really hairy backs on men turn me off. I'm not into the ape thing at all. Or beer bellies and flabby arms, either. Also, one random nose hair which is longer than the others... that's gross.
The irrational in the human has something about it altogether repulsive and terrible, as we see in the maniac, the miser, the drunkard or the ape.
We are not the only animal that mourns; apes do, and elephants, and dogs. Yet we are the only one that tortures.
Greatness, in order to gain recognition, must all too often consent to ape greatness.
I have found the missing link between the higher ape and civilized man; it is we.
Evolution was far more thrilling to me than the biblical account. Who would not rather be a rising ape than a falling angel? To my juvenile eyes, Darwin was proved true every day. It doesn't take much to make us flip back into monkeys again.
Recognition of this kinship with the rest of the universe is necessary for understanding him, but his essential nature is defined by qualities found nowhere else, not by those he has in common with apes, fishes, trees, fire, or anything other than himself.
Certainly the first true humans were unique by virtue of their large brains. It was because the human brain is so large when compared with that of a chimpanzee that paleontologists for years hunted for a half-ape, half-human skeleton that would provide a fossil link between the human and the ape.