Caroline Weaver : Idea Why the pencil is perfect

Caroline Weaver at Small Thing Big Idea
Why the pencil is perfect  (transcript)
Summary
The speaker tells that to her, a pencil is a very perfect object because it’s taken hundreds of people over centuries to come to this design, it’s long history of collaboration, and the average user has never thought twice about those.
In her opinion, there’s nothing that can be done to make the pencil better than it is. That’s why the pencil is perfect.
Again, I was sorry that I didn’t know about a pencil and its history at all. I’d thought that a pencil was invented in Japan and it's exported and donated to many other countries. It's because I've heard that the pencil made in Japan is really easy to write with, a core is　hard to break, an eraser that is put also erases something to be written very cleanly.
And then I didn't listen to the sound of the pencil, I always focused on how to write beautiful characters.
I had to use one pencil until the end because my mother said that. I learned from my mother that I should feel gratitude for all things and use them until the end when I started using the pencil. This is the pencil to me. I'd used one pencil until it's very short. No one had it is my memory about the pencil.

Words in this story
patent /verb/ obtain a patent for (an invention).
This technology is patented.
hexagons /noun/ a plane figure with six straight sides and angles.