Once upon a time, there were a master and a servant who accompanied each other on a distant island. One day, the master was too ill to manage his fields and fortunes. He wanted his servant to find someone who could inherit his fortunes and become a great leader to assist his people on the island. The master gave a mission and a hint to his loyal servant, and he said, “Please hire a fisherman to sail with you on the sea. Find out the most valuable thing after you face obstacles and...