The years of early childhood are the time to prepare the soil.

We cannot have peace among men whose hearts find delight in killing any living creature.

It is not half so important to know as to feel.

Every mystery solved brings us to the threshold of a greater one.

The more I learned about the use of pesticides, the more appalled I became. I realized that here was the material for a book. What I discovered was that everything which meant most to me as a naturalist was being threatened, and that nothing I could do would be more important.

I still feel there is a case to be made for my old belief that as man approaches the 'new heaven and the new earth' -- or the space-age universe, if you will, he must do so with humility rather than with arrogance.

Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts. There is something infinitely healing in the repeated refrains of nature -- the assurance that dawn comes after night, and spring after winter.