I didn't expect such a huge reaction, but I knew I was doing something different to everything else that was happening at the time.
When the ambassadors of other foreign countries come to Japan to make treaties, they can be told that such and such a treaty has been made with the ambassador of the United States, and they will rest satisfied with this.
Not until, years later, I found my true interest in life did I discover that I could master a subject, no matter how difficult, if it helped me in what I wanted to do.