"我有一个梦想，那就是我的四个孩子有一天能生活在一个国家， 在那里，他们不会因为皮肤的颜色而被评判，而是根据他们的品格。我今天有一个梦想。"

Simplified Meaning:

Martin Luther King Jr. is envisioning a future where his children, and everyone else, are evaluated based on their actions and moral qualities, not their race or appearance. He hopes that one day, people will be treated fairly and equally, and that their worth will be determined by who they are on the inside rather than their skin color. This idea can be compared to a job interview where candidates are chosen based on their skills and experience, not their looks. King is advocating for a world where everyone, regardless of their background, has an equal opportunity to prove themselves and be respected. In a practical sense, you can apply this by making an effort to get to know people and understand them before forming an opinion about them. It means treating everyone with kindness and giving them a fair chance to show their true selves. For example, if you're in a classroom or at work, focus on the ideas and efforts your peers bring to the table rather than any biases based on how they look. This creates a more just and united community where everyone feels valued and respected.