The Top Student in My Class Knows How to Cultivate Immortality

He was born among the stars, became a master of learning, and studied to become an immortal. A teacher: "Learn mathematics, physics and chemistry well, and you don't have to be afraid to travel all over the world!" A student: "... Are you kidding me? What is the relationship between cultivating immortality and mathematics, physics and chemistry?" A teacher: "Sorry, this is a catchphrase left over from my previous teaching experience."