Akrasia is the ancient Greek term for acting against your own better judgment—doing the thing you know you shouldn't, or failing to do the thing you know you should.

Positive Sum Thinking is the belief that interactions, relationships, and deals don't have to produce a winner and a loser—that value can be created so that everyone walks away with more than they started with.

Amor Fati is the practice of not merely accepting what happens to you—good or bad—but actively embracing it as necessary and even good.