Terence McKenna Quotes
The overriding problems are brought on by the existence of the ego, a maladaptive behavioral complex in the psyche that gets going like a tumor. If it's not treated - if there's not pharmacological intervention - it becomes the dominant constellation of the personality.
McKenna, Terence. Food of the Gods: The Search for the Original Tree of Knowledge. Bantam Books, 1992.
Terence Kemp McKenna was an American ethnobotanist and mystic who advocated for the responsible use of naturally occurring psychedelic plants. He spoke and wrote about a variety of subjects, including psychedelic drugs, plant-based entheogens, shamanism, metaphysics, alchemy, language, philosophy, culture, technology, environmentalism, and the theoretical origins of human consciousness. He was called the "Timothy Leary of the '90s", "one of the leading authorities on the ontological foundations of shamanism", and the "intellectual voice of rave culture".