"We are, indeed, often cruel and evil. Nobody can deny this. We gang up on one another, we torture each other, we use our intellect to manipulate, we kill."

"We must never give up hope."

"The world needs more compassion."

"I'm often asked if I get lonely out in the field. And the answer is no, because I'm surrounded by life."

"The world is full of wonders, and it's our job to protect them."