"The injurious agent in cigarettes comes principally..." - Quote by Thomas Edison

The injurious agent in cigarettes comes principally from the burning paper wrapper. The substance thereby formed is called "acrolein." It has a violent action on the nerve centers, producing degeneration of the cells of the brain, which is quite rapid among boys. Unlike most narcotics, this degeneration is permanent and uncontrollable. I employ no person who smokes cigarettes.
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More by Thomas Edison

“There is a better way to do it - Find it!”
— Thomas Edison
“I have not failed 700 times. I have not failed once. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
— Thomas Edison
“Sticking to it is the genius.”
— Thomas Edison

More on Health

“Medicine is the restoration of discordant elements.”
— Leonardo da Vinci
“As the great ones of this world are unable to bestow health of body or peace of mind, we always pay too high a price for any good they can do.”
— François de La Rochefoucauld
“We need the tonic of the wilderness, to wade sometimes in the marsh where the bitten and the meadow hen lurk, and hear the booming of the snipe; to smell the whispering sedge where only some wilder and more solitary fowl builds her nest, and the mink crawls with its belly close to the ground.”
— Henry David Thoreau

More on Smoking

“I never smoked a cigar in my life until I was nine”
— W. C. Fields
“A cigarette is a pinch of tobacco rolled in paper with fire at one end and a fool at the other.”
— George Bernard Shaw
“I started smoking as soon as I went on the stage. I'd make cigars out of the Morning World when I was a kid.”
— Groucho Marx