On the Harmful Effect of Tobacco

«For the subject of my lecture today I have taken, so to speak, the harm done to mankind by the use of tobacco. I myself smoke, but my wife told me to lecture on the harmfulness of tobacco, and so what's to be done? Tobacco it is. It's all the same to me; but, kind ladies and gentleman... I urge you to take my lecture with all due seriousness in order to avoid aAnton Tchékhov, extrait des Méfaits du tabacny mishaps. If any of you are afraid of a dry, scientific lecture, cannot stomach that anton tchékhov, excerpts of  on the harmful effects of tobacco sort of thing, you needn't listen. You may leave. »
Anton Tchékhov, excerpts of On the Harmful Effects of Tobacco