Answer:
"The honest sailor took advantage of the Professor's enthusiasm to double the fare."
Step-by-step explanation:
A paradox is a situation where observations are not in accordance with experiences or expectations.For example:The only certain is uncertain.
The sailor used the man's behavior/tendency to get eager to manipulate him into doubling the fare.Even though it was wrong and unfair to do this.Which in a humorous way he exploited the man's behavior to his advantage.
The sailor was not at all honest