"Born in the ordinary, don't be content with the ordinary; You can be indifferent to others, but never to yourself. " What do you mean?

It means that people's origins and talents can be ordinary, but people's hearts and will can't be content with the status quo. They should strive for progress and not deny themselves. If they are not confident, who will believe you? Who can be defeated without self-improvement? It is recorded in Laozi that those who know others are wise, those who know themselves are clear, those who overcome others are strong, and those who overcome themselves are strong. It means that it is wise to know people's faces but not their hearts. It is wise to know people's faces and not their hearts. It is natural and powerful to defeat your opponents, but it is the real strength to overcome your own inner shortcomings.