I liked the distinction made between frameworks and libraries, especially with regards to their level of engagement. Once you start using frameworks, you become more dependent on them than you would if you were using libraries. Nowadays, people often choose frameworks for everything so it's started to become very common to get absorbed in the details of the framework you are working with rather than the actual problem at hand.
> It’s easy to add complexity as you need it to accomplish your goals. It’s much harder to remove it.
Very good saying.