Book excerpt: The Cannabis Manifesto answers essential questions about the plant, using extensive research to fuel a thoughtful discussion about cannabis science and law as well as its biological, mental, and spiritual effects on human beings. With a cultural critic's eye peering through the lens of social justice, Patrick explains how cannabis prohibition has warped our most precious institutions - from the family to the workplace to the doctor's office and the courtroom. In calling for a realistic national policy on a substance that has been used by half of all Americans, this essential primer will forever change the way the world thinks about cannabis, its benefits, and the laws governing its use.