“Anything done in excess is bad for you. If you compare different evils, marijuana is probably one of the least and probably should still be considered as such. That is not to say that marijuana is harmless. It is a drug. All drugs – legal and illegal – can be harmful.

Everything that is potentially pharmacologically active can be potentially harmful and must be consumed with a certain degree of intelligence…No amount of scientific study will justify immoderation. There are always people who will use the latest finding to justify their weakness, but that doesn’t work.”