Supplements for focus should be used as a tool to teach deeper focus, not as a crutch.

“I prefer to look at supplements of the sort that I just described as a route into a deeper trench of focus and concentration that I use as a tool to teach myself to focus and concentrate more deeply, such that I don't need those tools every single time I try and focus and concentrate.”

“As a general backdrop to all of this, I always say and I'll say it again and again probably until the day I die, which hopefully is a long time from now, but regardless, it'll be the same message, I always believe that behavioral tools should come first, behavioral tools”