a diary or journal of personal reflections. It was a learning tool that the educated class used to understand a rapidly changing world and their place in it.

Reflections: Personal thoughts and lessons written in a journal or diary.

I will teach you how to create a system of knowledge management, or a “Second Brain.”* Whether you call it a “personal cloud,” “field notes,” or an “external brain” as some of my students have done, it is a digital archive of your most valuable memories, ideas, and knowledge to help you do your job, run your business, and manage your life without