Every form of addiction is bad...

Every form of addiction is bad, no matter whether it be alcohol or morphine or idealism.

--Carl Jung

Cocaine isn't habit-forming

Cocaine isn't habit-forming. I should know. I've been using it for years.

--Tallulah Bankhead

All sins tend to be addictive...

All sins tend to be addictive, and the terminal point of addiction is what's called damnation.

--W. H. Auden