Wherever there is light, there is shadow; wherever there is length, there is shortness; wherever there is white, there is black. Just like these, as the self-nature of things can not exist alone, they are called non-substantial.
Gautama BuddhaI, ever knowing the living beings Who tread the Path and those who do not In response to those who may be saved Preach to them a variety of dharmas, Each time having this thought: 'How may I cause the beings To contrive to enter the Unexcelled Path and quickly to perfect the Buddha-body?'
Gautama Buddha