What is curley's philosophy of fighting? What can we infer about his character from this?

George knows Curley has a major case of "small guy" complex. Curley likes to go after big guys to prove he is tougher than them. Curley only goes after people he thinks he can intimidate. George worries that Curley is going to go after Lennie and Lennie won't be able to comprehend the reasons why.