Pave the Moon

Pave the Moon! You can put whatever you want on it, but the trick is to figure out how to make this monumental step in as few words as possible.

In case you can't read it, the above says "Whatever maintains the buoyancy of your aquatic vessel".....I get tired of saying "Whatever floats your boat." Nothing wanted to fit and I didn't want to spend any more time trying to find insightful words of wisdom to plaster on the moon :(. I wish you better luck.