What is a saying you live by?

"Don't worry about things you can't control." "Smile more, you can get away with all sorts of incompetence if you are cheerful." "Never go to bed until an argument is resolved. " I've butchered that one and it's my wife's motto not mine, but it is bloody fantastic. As is she. And then a more career-focused one: "if you don't compete you might let the idiots win." "If you have nothing nice to say, say nothing." This was my gran's, but it's a good one. As a husband: "surprise flowers are better than expected ones." The point here is I don't need to wait until valentine's day to tell my wife I appreciate her. And it doesn't need to be flowers (but it normally is). Basically small impromptu gestures to show your love.