Originally, Thor was very arrogant and full of himself and sought battle to prove his strength and heroism. He was also very short-sighted, acting on impulse or however he felt justified. Thor believed that he was entitled to the Asgard throne, and eagerly awaited his coronation
For his reckless actions and behavior, Thor's father Odin stripped him of his powers, titles, and rights, banishing him to Midgard until he proved himself worthy of his power. The plan worked and he returned humbled and much wiser and even thanked his father for the lessons he learned
After his exile and subsequent return, Thor has become a noble warrior and a man of honor. He now thinks through his actions, trying to compromise before fighting. He fights not for glory but for the greater good. He also realized he was not yet ready to be king of Asgard, eventually deciding to abdicate his claim to it to better safeguard the well-being of the universe. He has dislike of mortal technology and science for creating supervillains and admires heroes with courage, honor, compassion, and the gift of battle. He was very wise about mortal tales and criticizing villains about their abilities they boasted. He has occasional difficulty with human and Earth culture but appears to have become more accustomed to it while working with the Avengers
He has a large amount of respect for family, who have defined his personality—his father Odin and his mother Frigga, who he loves very much. Had it not been for his wise father, he would still be full of arrogance and irresponsibility, a fact that he is well aware of. His mother's similarly wise but gentle touch taught him to fight for good. He initially has a complicated relationship with his troublemaking brother Loki, upset with him for the trouble he has caused on Earth and Asgard. However, he does care for his brother, and wishes for him to stop his dangerously mischievous ways. Despite this, Thor is not above fighting his brother if it means protecting others