"Fame is very corrosive and you have to guard very strictly against it"

In this quote, actor Edward Norton is alerting about the threats of fame. He explains it as "corrosive," meaning that it can gradually eat away at a person's character and values. He emphasizes the requirement to guard against it "extremely strictly," implying that popularity can be appealing and tempting, however also potentially hazardous. This could be analyzed as a care against becoming too consumed with the pursuit of popularity and the prospective negative results it can have on one's personal life and relationships. Norton's words work as a pointer to stay grounded and real to oneself, even in the face of popularity and its possible pitfalls.