输入一段英文文本，请将其翻译成中文。输出的翻译应该流畅而准确。


Text: "I have a dream that one day this nation will rise up and live out the true meaning of its creed: 'We hold these truths to be self-evident, that all men are created equal.'"
我有一个梦想，就是有一天这个国家会振起并真正实践其信条的真正意义：“我们认为这些真理是不言自明的，即所有人生来平等。”