"One need never be unsanitary while one is being dirty, as 'sanitary' is a state of fact and 'dirty' is a state of mind."
"Do not use sex to harm self or others"
"We can desire anything we want. We just can't have everything we want." 
"There are no wrong thoughts, only wrong actions." 
"Consensual pleasure is an unalloyed good, full stop."
"No one owes anyone an orgasm."