改变是生活的本质。愿意放弃现在的你，才能成为可能的你。
Change is the essence of life. Be willing to surrender what you are for what you could become.
The utility of an idea determines its place in mental life.
幸せは、小さな瞬間の積み重ねだ。
The computer is a medium of expression, like a violin or a paintbrush.
Hope is a good thing, maybe the best of things, and no good thing ever dies.
