Doubt Is the Enemy of Progress - Ryan Holiday
Created at: March 30, 2025

Doubt is the enemy of progress. — Ryan Holiday
Impact of Doubt on Action
This quote emphasizes that doubt can prevent individuals from taking steps forward. When people second-guess themselves or hesitate, they often delay or abandon important actions necessary for growth and success.
Progress Requires Conviction
Achieving progress typically requires confidence and certainty in one's decisions and vision. Doubt undermines that certainty and may lead to stagnation or failure to follow through on goals.
Psychological Barrier
Doubt can function as a psychological barrier that heightens fear and insecurity. Ryan Holiday highlights how internal mental obstacles can be more detrimental than external challenges to achieving progress.
Philosophical Influence
As a modern Stoic writer, Ryan Holiday draws from Stoic philosophy, which teaches the importance of inner control and clarity. This quote reflects the Stoic idea that mental clarity and purpose are essential for personal advancement.
Encouragement for Perseverance
The quote serves as a motivational reminder to overcome doubt in pursuit of one's goals. It encourages perseverance, self-belief, and continued effort in the face of uncertainty.