"We're dabbling in eugenics all the time, breeding ideal crops to replace less aesthetic or nutritious or hardy varieties; leveling forests to graze cattle or erect shopping malls and condos; planting groves of a few familiar trees that homeowners and industries prefer."

"Nothing is more memorable than a smell. One scent can be unexpected, momentary and fleeting, yet conjure up a childhood summer beside a lake in the mountains."

"For better or worse, zoos are how most people come to know big or exotic animals. Few will ever see wild penguins sledding downhill to sea on their bellies, giant pandas holding bamboo lollipops in China or tree porcupines in the Canadian Rockies, balled up like giant pine cones."

"It began in mystery, and it will end in mystery, but what a savage and beautiful country lies in between."

"The automobile engine will come, and then I will consider my life's work complete."

"No one is satisfied with his fortune, nor dissatisfied with his intellect."

"You need to develop, somehow, a huge amount of faith and confidence in yourself, because there's a lot of rejection throughout an actor's life and you have to believe in yourself more than anyone else."

"There's a period of life when we swallow a knowledge of ourselves and it becomes either good or sour inside."