Br'er Fox he lay low. As you brew, so you will bake. Every bullet has its billet. Once caught twice shy. You cannot burn the candle at both ends.
Fair words butter no parsnips.
You cannot eat your cake and have it to. Muffled cats catch no mice. Tis an old rat that won't eat cheese. Claw me I will claw thee. Cleanliness is next to godliness.