“help stamp out pollution clean out your speech.”

“Bless people when they revile you. Think how much good they are doing by helping to stamp out the false ego.”

“Do not pollute my perfectly acceptable figurative speech with irrelevant facts!”

“I fast every Sunday. I don’t eat anything. Just juices. […] It flushes out the system, cleans out the colon. I think that’s great. To really make it work, you have to do it properly. That’s the sewer valve of the system. You have to keep that clean like you clean the outside of your body. All these impurities come out of your system because you’re not clean inside. It comes out in pimples or disease or through big pores. Toxins trying to get out of your system. People should try to keep themselves clean.”

“If the knowledge is spread, it cannot be stamped out.”

“I hate noise pollution. Get that filthy soda can out of my ear!”