The hardest enemy to defeat is prejudice.

"A man can't step into the same river twice." Usually, no one pays attention to the eternal meaning of this statement. In dealing with specific matters, people often encircle the vastness and get mired on narrow familiar paths. There are still 1000 roads not walked by humans, 1000 mysterious islands, 1000 kinds of potential, and 1000 kinds of abundance and possibilities in this world...