He hopes that one day he can spread his wings and soar.
Tips
usage
English 'goofy' means 'silly', a sense the Chinese name drops. Chinese uses 高飞 for the family name too: his son Max Goof is 麦斯·高飞, and the 1992 series Goof Troop is 《高飞家族》.
usage
As a verb phrase 展翅高飞 ('spread wings and soar') is a common blessing for graduates or departing friends.