A phrase I use a lot because it is useful. It should probably be
inserted so deeply into the human mind that it is axiomatic to the very utterance of a statement.
Add this to a lot of philosophical directives, and they make much more sense.
For instance, if I say that on some level, everything is as it should be, I don't mean I'm not going to get angry if someone kicks me in the balls. Their attacking me is all a part of the grand scheme of things, but it is also part of the grand scheme of things for me to kick their ass.
Illustrated well by The story of the elephant and the monk.