“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.”

“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.”

“I am the Lorax! I speak for the trees, Which you seem to be chopping as fast as you please; But I also speak for the brown Barbaloots, Who frolicked and played in their Barbaloot suits, Happily eating Truffula fruits. Now, since you've chopped the trees to the ground There's not enough Truffula fruit to go 'round! And my poor Barbaloots are all feeling the crummies Because they have gas, and no food, in their tummies.”

“Time is the old justice that examines all such offenders, and let Time try.”

“Now let it work. Mischief, thou art afoot. Take thou what course thou wilt.”

“Fire that's closest kept burns most of all.”