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
In Righteous Kill, Al Pacino speaks of a man dying twice: “The first time is when the body dies. The second is when the people who remember him are gone.” It is a deeply human idea — that memory itself is a form of continued existence. But there is another line
Modern Ronin Reflections
A philosopher once said: “Only when people are not doing what they truly love do they measure life through success or failure.” Looking back on my own career, I can say this feels profoundly true. The moments that brought me the deepest sense of meaning were not simply the moments
Modern Ronin Reflections
Some things cannot be fully measured, yet they profoundly transform a human life. Awakening, mindfulness, and shadow integration are rooted in inner experience. They are difficult to prove, and equally difficult to falsify. But the inability to quantify something does not mean it is unreal. Some truths are not first
Modern Ronin Reflections
We are often told to follow our passion. But from my experience, that is not where things begin. Passion is unstable. It can be easily influenced by emotion, novelty, and dopamine. It feels real, but it is not always reliable. What changed everything for me was not chasing passion, but
Modern Ronin Reflections
For a long time, I’ve had a persistent sense that everything we achieve in life— degrees, titles, awards, milestones— feels very similar to progress in a video game. It is as if we are controlling a character, leveling up, clearing stages, and occasionally collecting rewards along the way. But
Modern Ronin Reflections
Why is long-term thinking essential for career success and personal growth? Because only over a long enough period can compounding truly take effect. Compounding is not an instant force. It is a kind of alchemy that requires time to build, deepen, and multiply. Without time, there is no real
Modern Ronin Reflections
Many people like to say: “Never forget your original heart.” It sounds beautiful, even inspiring. But the more I reflect on life, the more I feel that this idea is not always true. In some cases, it can even become a kind of toxic comfort. Why? Because the human heart
Modern Ronin Reflections
For me, I have already accomplished many things in life. I earned a Ph.D., worked in Taiwan for more than a decade, built my own business and channel, and wrote my English Springer book. My green card has also been approved. So if I still want to challenge myself
Modern Ronin Reflections
After forty, I gradually went through a deep process of self-integration. If I borrow Carl Jung’s language, it was something like shadow integration. After going through that path, I found that death began to enter my thinking naturally. It was not negativity, and it was not pessimism. It
Modern Ronin Reflections
Like Miyamoto Musashi, a ronin who walked his own path with two swords, I see myself as a modern ronin. One blade is engineering. One blade is philosophy. Engineering reduces uncertainty and builds stable systems. Philosophy reduces inner noise and builds a stable mind. They appear different, but at their
Modern Ronin Reflections
The world does need strong theory. What it needs even more is the ability to turn theory into working systems. Engineering is not only about understanding — it is about bringing ideas into reality. Understanding gives us direction. Execution gives that direction form. And even realization is not the end. Greater
Modern Ronin Reflections
Recently, I’ve come to realize that life is essentially a process of using energy. Everything we do is an expression of how we use energy. But the key is not whether we have energy— it’s how that energy is generated. When you are aligned with your inner self,