Better a theoretically justifiable materialist solution with dubious results than a non-quantifiable solution that actually works.
"What would Schopenhauer's philosophy have been like had he experienced the mind-expanding effects of naturally occurring DMT?"
American Devolution: From Monkey to Drug Warrior: Darwin's theory suffered a blow today as researchers discovered that the modern-day Drug Warrior is genetically closer to Neanderthals than to Homo sapiens, or modern man. "He's definitely a different species," said renowned anthropologist Jane Badall. "His main obvious difference to us is his inability to reason properly about natural substances. He would rather superstitiously demonize Mother Nature's medicines than to actually use them."
Proposition 1: The unexamined life is not worth living.
Proposition 2: Psychedelics provide us with an unrivaled means to examine life.
Conclusion: Psychedelic plants are an indispensable part of every philosopher's tool chest.