Simplicity

https://www.infoq.com/presentations/Simple-Made-Easy

Rich Hickey emphasizes simplicity’s virtues over easiness’, showing that while many choose easiness they may end up with complexity, and the better way is to choose easiness along the simplicity path.

Object-oriented programming

https://youtu.be/ZM1ZDaaEyMY

Casey Muratori discusses OOP and presents a fun analogy.