to create the ship,
it is not to weave the fabrics,
to forge the nails,
to read the stars,
but to instead give a taste for the sea.

Antoine de Saint Exupery. DESSINE-MOI UN BEATEAU [MAKE ME A BOAT].


and a more prosasic translation:

If you want to build a ship, don't drum up the men to gather wood, divide the wood, and give orders. Instead, teach them to yearn for the vast and endless sea.

quoted byLeonard Sweet in SUMMONED TO LEAD.