给出一篇文章，将其中英文单词的首字母变成大写字母。
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."
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."