There are more than just a single theme for the Book , of Mice and Men. To make a list would be friendship between two people, how people will always make fun of the dreams you hold.
The friendship between two people is largely spread throughout the book right to the very end to the book. Saying how it's always a hard thing to keep a friendship up and going, and when it's gone you'll realize what you can and cannot do anymore. With George and Lennie, they were the biggest example for the book. They were the walking example in the book. Saying how you can get mad at the other person, yet you can never stay mad at them forever. And how there can always be something that can split you two up from each other, and how sometimes it's for the best.
The fact that almost everyone they ran into in the book made fun of the idea of owning a rabbit farm seemed to always make a point in the book. Even Lennie, in the last chapter, made fun of his own dream. He always knew it was never going to happen, yet he could refrain from dreaming about it, and making ideas to make the dream bigger and make a impact on himself.
The friendship between two people is largely spread throughout the book right to the very end to the book. Saying how it's always a hard thing to keep a friendship up and going, and when it's gone you'll realize what you can and cannot do anymore. With George and Lennie, they were the biggest example for the book. They were the walking example in the book. Saying how you can get mad at the other person, yet you can never stay mad at them forever. And how there can always be something that can split you two up from each other, and how sometimes it's for the best.
The fact that almost everyone they ran into in the book made fun of the idea of owning a rabbit farm seemed to always make a point in the book. Even Lennie, in the last chapter, made fun of his own dream. He always knew it was never going to happen, yet he could refrain from dreaming about it, and making ideas to make the dream bigger and make a impact on himself.