I’ve run 5 ultra-marathons. The secret to persistence is to destroy the quitter’s mind. Here are 8 ideas from Naval Ravikant on building mental toughness and resilience:

In the year 1330 an officer at the Japanese imperial palace retired to become a Buddhist monk. His name was Yoshida Kenkō, and here are 18 pearls of wisdom from his famous Tsurezuregusa, the Essays in Idleness. In a distracting world, here's a different way to think...

At 32 years old, I realized I was a child in an adult body. Here's how I worked on becoming more emotionally mature:

4 Harsh truths that changed my life: 1. no one is coming to save you 2. personal accountability is the path to freedom 3. creating a different life means creating new habits 4. not everyone will want the best for you, and thats ok

Everybody I meet during the holiday is amazed by my “willpower” to avoid sugar and the starchy food and for staying in shape. I’m amazed by everybody’s lack of desire to improve their poor health. When you’re satiated from always eating well, there is no willpower involved.

Getting older is not an excuse to justify your poor health. Gaining weight, feeling achy and tired, having chronic diseases like type 2 diabetes and high blood pressure, etc… are not results of aging. They are products of your lifestyle, mostly your diet, compounded over years.

Most people who want to be healthy want to be told what to do and not get into any science. The path to health involves abstaining from sugar and processed carbs, replacing your energy source from carbs to fats and eating protein to satiety. There is no shortcuts or magic pills.

Vitamin D is important for a healthy immune system. Vitamin D gets activated by magnesium. Vitamin D DOES NOT WORK without MAGNESIUM! Remember that when you go to take your vitamin D pill.

Your most important life investments are your physical and mental health, and your close relationships. If you don’t have your health, would any amount of money compensate for it? If you don’t have the right people and relationships in your life, will money buy you happiness?

Eating one bad meal has a short term cost of not feeling good temporarily afterwards. Eating bad meals regularly has a long term cost of becoming chronically sick with metabolic diseases that get blamed on age and genetics. Obesity and type 2 diabetes are dietary conditions.

The best “energy drink” is 3L of water. The best “focus drug” is 8 hours of sleep. The best “antidepressant” is 45 minutes of exercise.

Why would I want a “balanced diet”? What are we balancing? Food that promotes health vs. food that promotes sickness? Real food vs. junk food? Is this just an excuse to say: I can eat junk food “in moderation”? How much is too much? I want a healthy diet, not a balanced diet!

Eat less often, your body will thank you

Margaret Hamilton, NASA's lead developer for Apollo program, stands next to all the code she wrote by hand that took humanity to the moon in 1969.

80% of people are insulin resistant It's a silent killer... If you want to control the deadly condition you probably already have, read this:

Step 1: brutal honesty with self Step 2: fix your mindset Step 3: break the first bad habit Step 4: solidify a new positive habit Step 5: realise you are capable of anything Step 6: become addicted to discipline Step 7: help others achieve the same Step 8: build your legacy

At age 31, I was earning $1000 per month, barely able to pay my expenses. 3 years later, I made $20,000 per month. I learnt everything I needed to earn a high income online. Here are 7 great videos that will accelerate your income (for free):

If taking 400mg of magnesium causes you to have to run to the bathroom, It’s probably because you’re taking either citrate or oxide. These are low-quality forms of magnesium. Malate & glycinate will be much gentler on your stomach.

Notes & Memos, 1969.