It is now one hundred years since drugs were first banned — and all through this long century of waging war on drugs, we have been told a story about addiction by our teachers and by our governments. This story is so deeply ingrained in our minds that we take it for granted. It seems obvious.

Source: http://www.huffingtonpost.com/johann-hari/the-real-cause-of-addicti_b_6506936.html