I finally tracked down a copy of Rachel Carson's book, "The Sense of Wonder" through my local library. It was a copy from 1966, older than me and had some great photos to accompany the text. I read it in 15 minutes, or devoured it I should say. Here is a passage I loved:
"A child's world is fresh and new and beautiful, full of wonder and excitement. It is our misfortune that for most of us that clear-eyed vision, that true instinct for what is beautiful and awe-inspiring, is dimmed and even lost before we reach adulthood. If I had influence with the good fairy who is supposed to preside over the christening of all children I should ask that her gift to each child in the world be a sense of wonder so indestructible that it would last throughout life, as an unfailing antidote against the boredom and disenchantments of later years, the sterile preoccupation with things that are artificial, the alienation from the sources of our strength."
By the way, there is also a film out about Rachel Carson, called "A Sense of Wonder".