"I remember once watching a chimpanzee trying to open a nut with a stone, and it was so frustrated, it just threw the stone down and screamed. I understood exactly how it felt."

"The greatest gift we can give our children is a healthy planet."

"I think the most important thing is to have hope."

"We need to listen to the voices of the young people. They are the ones who will inherit the Earth."

"We have a responsibility to care for our planet and every creature on it."