I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
Only dull people are brilliant at breakfast.
You never know how a horse will pull until you hook him up to a heavy load.
When you make a mistake, don't look back at it long. Take the reason of the thing into your mind and then look forward. Mistakes are lessons of wisdom. The past cannot be changed. The future is yet in your power.
If the only prayer you ever say in your whole life is "thank you," that would suffice.
Let not thy will roar, when thy power can but whisper.
Never part without loving words to think of during your absence. It may be that you will not meet again in life.