Anyone who understands impermanence ceases to be contentious. The Dhammapada.

I sometimes remind students, “Try not to duck. Try to see the truth of your experience right now, Try to be there” When we are in contention with the moment, we push it away and then we don’t see it clearly. When we see things clearly we can usually figure them out. And when we see things cordially, or at least when we allow ourselves to see them this way, then they are not distorted by our liking or not liking. Another way of putting this is, “Let us see the truth of every moment and lets see it without contention”

Sylvia Boorstein, Greet this Moment as a Friend