On medical marihuana:

I would just like to say on that issue that I’m half color-blind. I have problems with green and red, unless I’m stoned when I can see color like the rest of you. Therefore I know it does me good, but that is not the argument for legalizing marihuana. It should be legalized because… it is a pleasant thing to happen in your life. Just as it is a pleasant thing to have a drink of alcohol.

Ian McKellen, „Oh, and one more thing…“ – Real Time with Bill Maher, 28.04.06