No one would have crossed the ocean if he could have gotten off the ship in the storm.
We did not all come over on the same ship, but we are all in the same boat.
It is not the ship so much as the skillful sailing that assures the prosperous voyage.
We should not moor a ship with one anchor, or our life with one hope.
Nothing focuses your mind quite like flying a jet. That's one reason NASA requires that astronauts fly T-38s: it forces us to concentrate and prioritize in some of the same ways we need to in a rocket ship.
Beware of little expenses. A small leak will sink a great ship.
If I had my will I would live in a ship on the sea, and never come nearer to humanity than that!
If the highest aim of a captain were to preserve his ship, he would keep it in port forever.