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Principles

by Ray Dalio · 2017

Ray Dalio's operating principles for life, work, decision-making, and organizational culture.

Why this author is included

Ray Dalio · Founder of Bridgewater

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Who recommends it

3 people have recommended Principles. Each entry links to the source.

Stephen A. SchwarzmanCo-founder, Blackstone

Ray brings unique analytic insights about how to think about complex issues. His Principles is a must read. It's a gift to all of us.

Recommended · Exact quote Source: Simon & Schuster

Evidence details

Principles

Schwarzman provided an attributed publisher blurb calling Principles a must read.

The quote is taken word for word from the source.

Simon & Schuster · 2017 · accessed 2026-06-20

Publisher · Publisher endorsement

The official Simon & Schuster page quotes Steve Schwarzman in the Raves and Reviews section for Principles, including his statement that the book is a must read.

Drew HoustonCo-founder & CEO, Dropbox

he sketched really concise and good thoughts for like, all right, how do you approach life?

Recommended · Exact quote Source: Tim Ferriss

Evidence details

The Tim Ferriss Show Transcripts: Drew Houston

Houston included Ray Dalio's Principles at the end of his core reading-list answer as a useful life-approach book.

The quote is taken word for word from the source.

Tim Ferriss · 2018-08-29 · accessed 2026-06-23

Transcript · Podcast transcript

Houston includes Principles by Ray Dalio in the core-reading-list answer and says Dalio sketched concise and good thoughts about approaching life.

Matt MullenwegWordPress cofounder and Automattic founder

Matt Mullenweg selects Principles among books he credits with influencing his professional work.

Recommended · Wording not verified Source: The Tim Ferriss Show

Evidence details

Books I’ve Loved — Matt Mullenweg (#420), transcript

Conservative summary of his own reading selection; no transcript excerpt copied.

This text documents what the source says, but it is not verified as a word-for-word quote.

The Tim Ferriss Show · 2020-05-13 · accessed 2026-10-01

Interview · Own reading selection

Positive professional-category reading selection; existing Ray Dalio book reused without edition or metadata changes.

Also mentioned by

These people mentioned or cited Principles without directly recommending it.

Bill GatesCo-founder, Microsoft; philanthropist

Ray Dalio has provided me with invaluable guidance and insights that are now available to you in Principles.

Mentioned · Exact quote Source: Simon & Schuster

Evidence details

Principles

Gates provided an attributed publisher blurb for Principles, describing the book as making Dalio's guidance and insights available to readers.

The quote is taken word for word from the source. It is a mention, not counted as a direct recommendation.

Simon & Schuster · 2017 · accessed 2026-06-20

Publisher · Publisher endorsement

The official Simon & Schuster page quotes Bill Gates in the Raves and Reviews section for Principles.

Reed HastingsCo-founder, Netflix

Principles had a profound positive impact on my leadership style-through living more honestly.

Mentioned · Exact quote Source: Simon & Schuster

Evidence details

Principles

Hastings provided an attributed publisher blurb describing the effect Principles had on his leadership style.

The quote is taken word for word from the source. It is a mention, not counted as a direct recommendation.

Simon & Schuster · 2017 · accessed 2026-06-20

Publisher · Publisher endorsement

The official Simon & Schuster page quotes Reed Hastings in the Raves and Reviews section for Principles.

About the author

What the author has done, shown separately from who recommends the book.

Ray DalioFounder of Bridgewater

Billionaire investor, founder of Bridgewater Associates, and author of Principles.

Principles

Who recommends it

Also mentioned by

About the author

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