Wind in the Willows - there's nothing - Tradução em português

"There is nothing- absolutely nothing- half so much worth doing as simply messing about in boats."

This is a famous passage from the book " The Wind in the Willows" and became a very popular proverb.

That's what Ratty said to Mole in Kenneth Grahame's beloved classic, The Wind in the Willows. "In or out of 'em, it doesn't matter. Nothing seems really to matter, that's the charm of it.". . . Ratty continued.
Whether you celebrate Ratty's notion sailing, motoring,rowing, paddling, boat building, or. . . whatever. . . "it doesn't matter". . . "that's the charm of it".

What is the meaning of this proverb?

Thank you very much!!

Nathalíe