Cartesian Doubt - Deepstash
The Psychology Of The Ultimate Entrepreneur

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The Psychology Of The Ultimate Entrepreneur

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Cartesian Doubt

Cartesian Doubt

Method used by René Descartes in which he would “systematically doubt everything he could possibly doubt until he was left with what he saw as purely indubitable truths."


10.3K reads


The Challenge of Reasoning From First Principles

One of the primary obstacles to first principles thinking is our tendency to focus on making slight iterations on the same theme. The problem is that, old conventions and forms are often accepted without question and they set boundaries around creativity.

Optimize t...


7.57K reads

The Power of First Principles

Even if you aren't trying to develop innovative ideas, understanding the first principles of your field is a smart use of your time. Without a firm grasp of the basics, there is little chance of mastering the details that make the difference at elite levels of competition.



7.24K reads

One Method, Different Solutions

One Method, Different Solutions

Different solutions present themselves at different layers of abstraction. Depending on how deep and thorough is your breakdown of the situation, putting them all back together may yield different solutions.


10.6K reads

Elon Musk

“Physics teaches you to reason from first principles rather than by analogy. So I said, okay, let’s look at the first principles. What is a rocket made of? Aerospace-grade aluminum alloys, plus some titanium, copper, and carbon fiber. Then I asked, what is the value of...



11.5K reads

First Principles Thinking

First Principles Thinking

Is the act of deconstructing something to the fundamental parts that you know are true and building up from there.

Also called reasoning from first principles, it effectively helps many great thinkers (or entrepreneurs like Elon) to break down complicated p...


20.6K reads

First Principles as An Innovation Drive

Many groundbreaking ideas have been a result of boiling things down to the first principles and then substituting one of the key parts for a more effective solution.

The best solution is often not where everyone is already looking. After getting to the fact...


7.91K reads

Using First Principle Thinking in Practice

Using First Principle Thinking in Practice

In theory, first principles thinking requires you to dig deeper and deeper until you are left with only the foundational truths of a situation.

In practice, you don't have to go down to the atomic level to benefit from first principles thinking. Just going one or two levels deeper t...


7.45K reads

First Principle

First Principle

A first principle is a basic assumption that cannot be deduced any further. 


8.53K reads




Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad.

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Our confusion about thinking

Our confusion about thinking

Our confusion stems from philosopher Rene Descartes, who decided to withdraw into his room and discard any knowledge that could be faulty. He chose to work from first principles on things he knew to be true from experience.

His new philosophy was formulated as, "I think, therefore I am...

Dostoevsky's "The Double" on narcisism

Dostoevsky's "The Double" on narcisism

The book aptly explains the experiential anxieties of modern social media. Dostoevsky, writing in 1846, was dealing with a more urbanized society, which increased the numbers of social encounters, just like the Internet today. Yet he saw people lonely, paranoid & vain, isolated by their imaginary...

Step 2: Remove fear and doubt

Step 2: Remove fear and doubt

Your fears and doubts come from a combination of all your insecurities, low self-worth, and limiting beliefs. So the two things that are really standing in your way between you and your goals are fear and doubt.

In order to get to the crux of what you want, ask yourself:

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