Tools are incredibly important. That's where I usually start out when entering a new domain. If I would start with photography, I'd start by buying a really good camera. But that might not be the way to go. 

In every area or field, there are some core principles. Principles explaining how we can achieve better within that field. And I think we've all encountered those core principles within a field. Realising that a good stamina helps enormously when playing soccer, or that a clean structure for your e-mail eases the use of the inbox. 

This episode is on just that. The core principles of things. Inspired by "The book of five rings" by Miyamoto Musashi.