Smoking ganja has always been associated with things like afternoon naps, video games, unhealthy food and a penchant for procrastination. While there’s no denying that you can just sit around for hours getting stoned and being amusingly unproductive, weed seems to have different effects on different people, and different strains of weed can also have profoundly surprising effects on us. Some of the smartest, most successful and funniest people on the planet have also been some of the biggest potheads ever seen, and they’ve got more than a few stoned words of wisdom to share with the world.

Here are some of the smartest quotes by a few of the most famous stoners ever.