Health Is Everything.

"The first principle is that you must not fool yourself—and you are the easiest person to fool."

Feynman stresses the importance of being honest with ourselves. It's easy to be blinded by our own biases, so we must constantly challenge our b...

When we experience beginners' luck, we might fool ourselves by mistaking luck for skill. It feels amazing because you get excited about your ability to repeat it.

• The leader convinced that he might be betrayed acts first and betrays others first. Afraid that he's not well-liked he works hard that it has the opposite effect. Convinced of mismanagement, he micromanages and becomes the Source of mismanagement. The things we dread or fear, we blindly infl...