"Some researchers have speculated that religion itself may have played an important role in getting large groups of prehistoric humans to socially cohere. If this is true, we can say that religion has served an important purpose. This does not suggest, however, that it serves an important purpose now. There is, after all, nothing more natural than rape. But no one would argue that rape is good, or compatible with a civil society, because it may have had evolutionary advantages for our ancestors. That religion may have served some necessary function for us in the past does not preclude the possibility that it is now the greatest impediment to our building a global civilization."

“Needless to say, if I knew my daughter would eventually develop a fondness for methamphetamine or crack cocaine, I might never sleep again. But if she does not try a psychedelic like psilocybin or LSD at least once in her adult life, I will worry that she may have missed one of the most important rites of passage a human being can experience.”

“Happiness and suffering, however extreme, are mental events. The mind depends upon the body, and the body upon the world, but everything good or bad that happens in your life must appear in consciousness to matter. This fact offers ample opportunity to make the best of bad situations—changing your perception of the world is often as good as changing the world—but it also allows a person to be miserable even when all the material and social conditions for happiness have been met. During the normal course of events, your mind will determine the quality of your life.”

“Honesty is a gift we can give to others. It is also a source of power and an engine of simplicity. Knowing that we will attempt to tell the truth, whatever the circumstances, leaves us with little to prepare for. We can simply be ourselves.”

“The connection between facts and values is straightforward and philosophically uninteresting... values reduce to facts about the well-being of conscious creatures; the well-being of conscious creatures is what can be valued in this universe... Now, here’s the one bit of philosophy I’m going to anchor this to: imagine a universe in which every conscious creature suffers as much as it can for as long as it can – I call this the worst possible misery for everyone. The worst possible misery for everyone is bad. If the word bad is to mean anything, surely it applies to the worst possible misery for everyone... the moment you grant me that the worst possible misery for everyone is bad and therefore worth avoiding... well then you have every other possible constellation of conscious experience which, by definition, is better. So you have this continuum here of states of consciousness and given that consciousness is related to the way the universe is, it’s constrained by the laws of nature in some way, there are going to be right and wrong ways to move along this continuum... now this is, in philosophy, a somewhat controversial statement. I do not see how.”

“I think it should be like getting a pilot's license. I think you should require training to get a license to have a gun.”

“If premarital sex is a sin, who is the victim?”