“Adults are only obsolete children.”

“Every once in a while, I get mad. 'The Lorax' came out of my being angry. The ecology books I'd read were dull... In 'The Lorax,' I was out to attack what I think are evil things and let the chips fall where they might.”

“Once-ler! You're making such smogulous smoke - my poor swomee swans, why they can't sing a note! No one can sing who has smog in his throat.”

“You ought to be thankful a hole heaping lot, for The places and people you're lucky you're not!”

“Plant a new Truffula. Treat it with care. Give it clean water. And feed it fresh air.”

“Do not shut up the young people against their will in a pew, and force the children to ask them questions for an hour against their will.”

“The world when seen through a little child's eyes, greatly resembles paradise. Happiness is doing with a smile what you have to do anyway. This time, like all time, is a very good one if we but know what to do with it.”

“Make for the children an evening of happiness in a world of storm. Let the children have their night of fun and laughter... resolved that by our daring, these same children shall not be denied their right to live in a free and decent world.”