Answer: true strength is in the ability to fail and try again
Explanation: In this excerpt from "Frithiof, the Bold" by Logan Marshall, the statement that best describes a theme of this story is true strength is in the ability to fail and try again. Frithiof is first warned by Ingeborg's father that he cannot marry her. When after the king died he requested her hand to her brother Helge, he was denied it. After that Ingeborg was married to King Sigurd Ring and Frithiof had to wait for his death to marry her. He tried in every way he could and finally succeeded.