"I find the greatest wonder in the smallest things."

"Who has the time to feel the earth beneath their feet, or the wind in their hair, or the sun on their face?"

"The greatest challenge of our time is to learn to live in harmony with nature, not against it."

"The most serious threat to mankind comes from within, from our own arrogance and ignorance."

"The most important thing is to instill in children a sense of wonder and curiosity about the natural world."