Dally's philosophy is based on the idea that the strong survive and the weak perish. He believes that in order to be strong, you have to be tough, and that means being willing to do whatever it takes to get what you want. Even if it means hurting others.
Dally's views are reflected in his actions throughout the novel. He is always looking for a fight, and he is not afraid to use violence to solve problems. He is also quick to anger, and he often speaks without thinking. This leads him to make mistakes that he later regrets.
However, Dally is also a loyal friend, and he is always willing to help those he cares about. He is also a complex character, and he is not always easy to understand. Ultimately, Dally is a product of his environment, and his behavior is a reflection of the harsh realities of the world he lives in.