“We use the word serious very frequently, where we should be using the word sincere. And the lack of proper delineation between these two words causes a great deal of confusion. It’s like the confusion about the word must. You must do this. Whether it’s a commandment, or whether it’s a condition, a state of affairs that simply is so. And so, in the same way, we need a clarification of must, and we need a clarification of serious. And it can be divided down into serious on the one hand, or sincere on the other.”

— Alan Watts, The Joker