Sutta Reference, perception, judgment

I'm looking for two suttas: (1) a sutta in which the Buddha says, I believe, that one is able to perceive the beautiful as ugly and the ugly as beautiful, along with other pairs that one can perceive in the way opposite to what is natural. (2) A sutta in which the Buddha says that you shouldn't judge others since only he or one like him knows the full extent of people's kamma. I believe it is from the long discourses.