But he's going to learn more soon." The captain conducted the nervous passenger to the stateroom set apart for him and then came back on deck.
"What do you think of him ?" he asked Bob.
"He seems all right, but very nervous." "That's the trouble.

He's too nervous.

His doctor recommended him to take a long sea voyage to see if it would cure him.

I think it will.

I never knew a sailor who was nervous, and it's all because of the salt water.