Interesting Talk: "Thinking in Patterns"

I've just watched this interesting talk by Cory Foy:

• Thinking in Patterns

He talks about thinking in the forces and the context of a given problem before deciding if any pattern is suitable. Once you decide that a pattern is suitable, instead of using the pattern implementation by the book, he advises to go on using design principles (SOLID, DRY, etc) to guide the development. This way the pattern would just be used as a reference of how the design might end being.