The phrase "better living through chemistry" is a shortened form of DuPont's slogan "Better Things for Better Living . . . Through Chemistry." First used in the 1930s, it was taken quite literally as plastics, pesticides, preservatives, and prescriptions transformed American life. In the 1960s, Timothy Leary and his cohorts were re-investing these words with a new romanticism: Drugs like LSD were the key to the good life, even if napalm was being used for mass killings in Vietnam.