The School of Knowledge | Substack

Big ideas that sharpen how you see the world, or as Charlie Munger would call it—worldly wisdom.

The Lab

19 Thinking Tools For Making Better Decisions

Concepts, mental models & frameworks i've found interesting

Jan 11 • The School of Knowledge

3 Ways We Fool Ourselves

Why is the reality most acceptable to science one that no small child can be expected to understand?

Jul 27, 2025 • The School of Knowledge

Bayes' Theorem and the Changing of Your Beliefs

A model for better rationality, avoiding the Bayesian thinking trap, and a multi-billion-dollar engagement machine

Jul 14, 2025 • The School of Knowledge

A Complete Thinking Framework for Better Decisions

Welcome to The School of Knowledge and this week’s free essay. Each Sunday, I send an essay to help you navigate your personal or professional…

Jun 8, 2025 • The School of Knowledge and Leo Rule | Align Your Family

Disorder, Chaos And Decay: How To Avoid High Entropy

In February 2009, I headed down south on a 5-hour train to join the Royal Marines.

Jun 1, 2025 • The School of Knowledge

Synthesis of foundational books and papers. The core ideas without the 400 pages.

The Reading Room

Lessons on Capital Allocation from Reading "The Outsiders"

Exhausted from treatment at the Chestnut Lodge psychiatric facility, Philip Graham had convinced the hospital doctors to allow him and his wife…

Nov 9, 2025 • The School of Knowledge

Overcome Uncertainty by Using Ray Dalio’s Strategy for Better Decisions

Ray Dalio's book Principles offers the kind of wisdom that helped him build a $14 billion fortune—yet you can hold it in your hands for just $20.

Sep 28, 2024 • The School of Knowledge

Ikigai: How To Truly Find Your Purpose In Life

There are two types of people in this world:

Aug 17, 2024 • The School of Knowledge

5 Powerful Lessons From Naval Ravikant For A Happier Life

“I would rather be a failed entrepreneur than someone who never tried.”

Aug 10, 2024 • The School of Knowledge

How To Be A Sales Guru: The Gary Halbert Way

You’re sitting there on a quiet Sunday afternoon when an overwhelming feeling of motivation, agency and excitement overcomes you.

Aug 3, 2024 • The School of Knowledge

The Nuts and Bolts

How to Read an Income Statement

Warren Buffett was infamous for stating that he spent most of his day sat around reading biographies, select newspapers, and company reports.

Feb 8 • The School of Knowledge

Navigating the Capital Cycle: Working Templates for Long-Term Investors and Business Owners

Understanding the behavioural traps that lead to booms and busts

Dec 14, 2025 • The School of Knowledge

Understanding Retained Earnings, Opportunity Cost and Net Present Value (NPV)

A capital allocation framework

Nov 16, 2025 • The School of Knowledge

An Introduction to Capital Allocation & Why It's the CEO's Most Important Jb

Understanding why, and how, some business grow and others die

Oct 8, 2025 • The School of Knowledge

Deep research on concepts, businesses and operators.

The Case Library

Why Value Creation Alone Isn't a MOAT (yet)

An introduction to the 7 Powers

Feb 17 • The School of Knowledge

Why Great Returns Attract Terrible Capital

A parable about market cycles, vulture investors, and the holiday armadillo

Dec 7, 2025 • The School of Knowledge

The Truth About ChatGPT Agent

Plus 6 case studies

Aug 10, 2025 • The School of Knowledge

How Jeff Bezos Built a 1.8 Trillion Dollar Company

Lessons from his 1997 Shareholder Letter

Apr 6, 2025 • The School of Knowledge

On Quality

Is "What Doesn't Kill You Makes You Stronger" Terrible Advice?

Our founding membership for The School of Knowledge Community will be opening soon. Thank you to those already on the list. If you haven't joined the…

Apr 27, 2025 • The School of Knowledge

Why Quality is the Most Important Aspect of any System

The concept of static and dynamic quality for systems thinkers

Mar 23, 2025 • The School of Knowledge

5 Stoic Lessons Every Multidisciplinary Professional Should Know

Hello, and welcome to The School of Knowledge, a newsletter that helps entrepreneurs and professionals convert worldly wisdom from books into actionable…

Oct 6, 2024 • The School of Knowledge

Marcus Aurelius's Number 1 Tip for Living a Happy Life

Life is short, and we have only so much time and energy.

Sep 14, 2024 • The School of Knowledge

The Weekly

The Weekly: 9/2/2026

Japanese proverbs on perspective, organising digital notes and getting started with NotebookLM

Feb 9 • The School of Knowledge

Weekly Highlights #23

5 things I found interesting, fun or helpful this week.

Sep 15, 2024 • The School of Knowledge

Weekly Highlights #22

5 things I found interesting, fun or useful this week.

Sep 8, 2024 • The School of Knowledge

Weekly Highlights #21

5 things I found interesting, fun or useful this week.

Aug 25, 2024 • The School of Knowledge

Weekly Highlights #20

5 things I found interesting, fun or useful this week.

Aug 18, 2024

Weekly Highlights #19

5 things I found interesting, fun or useful this week.

Aug 11, 2024 • The School of Knowledge

Weekly Highlights #18

5 things I found interesting, fun or useful this week.

Aug 4, 2024 • The School of Knowledge

Weekly Highlights #17

5 things I found interesting, fun or useful this week.

Jul 28, 2024 • The School of Knowledge

#nojs-banner { position: fixed; bottom: 0; left: 0; padding: 16px 16px 16px 32px; width: 100%; box-sizing: border-box; background: red; color: white; font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; font-size: 13px; line-height: 13px; } #nojs-banner a { color: inherit; text-decoration: underline; } This site requires JavaScript to run correctly. Please turn on JavaScript or unblock scripts