“The question whether drugs help the artist to create these beings of sensation, whether they are part of art’s internal means that really lead us to the ‘doors of perceptions’ and reveal to us percepts and affects, is given a general answer inasmuch as drug-induced compounds are usually extraordinarily flaky, unable to preserve themselves, and break up as soon as they are made or looked at.”

– Deleuze & Guittari, What is philosophy?