I, personally, think this is wrong. People don't need more courage, confidence, or trust in their ideas.

我个人认为这是不合理的，他们不需要更多的勇气和自信或者是对自己想法的坚信程度。

youdao

Just try your best to express yourselves, just to speak English loudly, right or false is not the most important, courage and confidence is the most important!

尽可能尽你们最大的努力来表达你们自己，尽可能大声地说英语，是错还是对不是最重要的，最重要的是要有勇气和信心。

youdao

To inspire with hope, courage, or confidence; hearten.

鼓励，鼓舞以希望、勇气或信心等鼓舞；使振作。

youdao

Without this unseen source of power a woman may have the desire and ideas to be wildly successful, but if she does not have confidence or the courage to act, she will not be successful.

FORBES: The Courage to Leap