Any musician who says he is playing better either on tea, the needle, or when he is juiced, is a plain, straight liar. When I get too much to drink, I can't even finger well, let alone play decent ideas.... You can miss the most important years of your life, the years of possible creation.
As quoted in Hear Me Talkin' to Ya: The Story of Jazz As Told by the Men Who Made It (1955) edited by by Nat Shapiro and Nat Hentoff, p. 379