“SANE” mnemonic, drawing on key questions posed by preeminent Western philosophers: Socrates, Aristotle, Nietzsche, and the Existentialists. 

Socrates: What is the most challenging question someone could ask me about my current approach?
Aristotle: What character virtues are most important to me and how will I express them?
Nietzsche: How will I direct my “will to power,” manage my self-interest, and act in accordance with my chosen values?
Existentialists (e.g., Sartre): How will I take full responsibility for my choices and the outcomes to which they lead?