Given the following question, let's solve step-by-step. Is the following statement true?
"Timothy Leary famously promoted the use of LSD and other hallucinogenic substances."

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Timothy Leary was on TV actively talking about using LSD.
The final answer: yes.