The answer is <u><em>" He was a cruel man, hardened by a long life of slaveholding "</em></u>
Answer:
Islamist, Islamic believer, pro-Islam, mohammedan
Explanation:
The sea has waves. They go up and crash back down. You can think of this as hard times. When you think your doing good and start rising to the top you often crash back down. This (the crash) leads to difficulties or troubled times.