Suprised to find that the author mentioned 'wrote down what made him happy in the past' in the book I read 7 or 8 years ago.
To put it another way, my action to jot down what made me happy was definitely affected by his description in the book, which I had not been aware of at all.
I am quite interested in what he is doing right now. Hope he started another exciting business or undertaking in the world of technologies.
Will put I learned from this book in the past as well as this time.
[To be added]