"Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all."

"The moment I understood this - that my Parkinson's was the one thing I wasn't going to change - I started looking at the things I could change, like the way research is funded."

"Discipline is just doing the same thing the right way whether anyone's watching or not."

"Humility is always a good thing. It's always a good thing to be humbled by circumstances so you can then come from a sincere place to try to deal with them."

"The goal of education is the advancement of knowledge and the dissemination of truth."

"Acting is all about honesty. If you can fake that, you've got it made."

"A leader does not command the wind, but sets the sails and steadies the crew. In this truth lies the bedrock of all virtue — an essential principle for the reflective life."

"It is a radiant truth that a steadfast commander remains calm when the storm rages fiercest."