Never have so many been so high so often. When a Boston research group decided to compare the effects of marijuana on experienced and inexperienced users, it took them two months to line up nine student subjects who had never used marijuana.

When one begins the transformative process, death and birth are imminent: the death of custom as authority, the birth of the self.

The difference between transformation by accident and transformation by a system is like the difference between lightning and a lamp. Both give illumination, but one is dangerous and unreliable, while the other is relatively safe, directed, available.

...As Thomas Kuhn pointed out in The Structure of Scientific Revolutions, new scientific theories in any field are regarded with skepticism because scientists become attached to the old perspective earlier in their careers.

The beginning of personal transformation is absurdly easy. We have only to pay attention to the flow of attention itself.

Cynics know the answers without having penetrated deeply enough to know the questions. When challenged by mysterious truths, they marshall 'facts.

The other side of every fear is a freedom.