Modern Ronin Reflections is a collection of essays on engineering, learning, discipline, and life from Dr. Jack Yeh, exploring the mindset of a modern-day ronin.
Modern Ronin Reflections
The fastest way to stop anxiety is to turn off the switch of comparison. Whether you compare yourself to others or to a future version of yourself, comparison always creates anxiety. The moment you turn that switch off, anxiety disappears. But what truly matters is this— once anxiety is gone,
Modern Ronin Reflections
I’ve come to resonate with an idea often associated with Carl Jung: Without touching something transcendent, a person cannot truly experience meaning in life. This sense of transcendence does not come from material accumulation or external achievements. The material world is finite, but the human psyche seems to reach
Modern Ronin Reflections
Language and words are, by nature, tools of highly compressed information. They exist to make complex experiences communicable, but in doing so, they inevitably lose a vast amount of detail. For this reason, it is impossible to truly understand life through language alone. Language can describe experience, but it can
Modern Ronin Reflections
After overcoming years of internal struggle shaped by culture and upbringing, I began to look back at the pain that once defined me. And I realized— it was never just pain. It was energy. Most people see the suffering of growth as misfortune, even a curse. But there is another
Modern Ronin Reflections
I’ve noticed something interesting— especially in many Chinese-speaking societies. There seems to be an unspoken assumption: once a person gains knowledge, status, or expertise, they no longer need to care about their appearance or physique. As if it’s a trade-off— you can either be intelligent and
Modern Ronin Reflections
Knowledge becomes wisdom only through experience. Any idea grounded in real experience deserves respect. But when a claim is based merely on reasoning rather than lived experience, we must approach it with caution and openness. There is no absolute objectivity in knowledge. All knowledge is, at its core, subjective—because
Modern Ronin Reflections
I’ve been thinking about something: If a person never reflects on death, it is very difficult to truly understand life. In fact, I’ve begun to wonder— Without death as a teacher, would life have any meaning at all? It’s like a game with no ending, no time
Modern Ronin Reflections
When I was younger, I believed power had to be applied — forced into existence through effort. But after forty, I began to understand something different: True power does not come from force. It is not something you generate. It is something you release. When you are aligned with yourself, power
Modern Ronin Reflections
The real danger of our time isn’t anxiety. It’s how we measure our worth. When people feel guilty for resting, it’s not because they’re lazy. It’s because they’ve been conditioned to believe: They only have value when they produce. Over time, modern civilization has
Modern Ronin Reflections
I’ve never believed that schools or titles define a person. Where a PhD is earned makes little difference to me. What truly matters is what you build and what you leave behind. Prestige can become an invisible constraint. The moment you see yourself through a label, your choices begin
Modern Ronin Reflections
The human mind seems to run on a default program. We ignore the 99% we already have, and fixate on the 1% we lack. So we start adding— more achievements, more status, more validation— trying to feel complete. But this kind of addition has no end. Because when you act
Modern Ronin Reflections
We often talk about learning and personal growth. And yes, they matter. But there is something even more fundamental: Your health. From my own experience, one factor stands above the rest: Sleep. Getting enough sleep—ideally around 7 to 8 hours—is not optional. It is essential. Sleep is when