演讲稿也叫演讲词，是指在群众集会上或会议上发表讲话的文稿。演讲稿是进行宣传经常使用的一种文体。演讲的作用是表达个人的主张与见解，介绍一些学习、工作中的情况、经验，以便互相交流思想和感情。那么我们写演讲稿要注意的内容有什么呢？那么下面我就给大家讲一讲演讲稿怎么写才比较好，我们一起来看一看吧。
自信演讲稿300字 自信演讲稿800字篇一
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自信演讲稿300字 自信演讲稿800字篇三
自信是走向成功的第一步；缺乏自信是失败的主要原因。莎士比亚
西方有句名言：世界是自信创造的。是的，力量是成功的根本，自信是力量的源泉。它是生命的灯塔，照耀着我们成熟的人生。
大家可能都很熟悉古代边河祭玉的故事。为了让美玉在人间大放异彩，边赫先是失去了左脚和右脚，却从未后悔过自己的第一次丧。终于，她遇到了懂得珍惜的人，以至于稀世珍宝彩禾走了出来。试想一下，如果边贺的左脚被砍了，他怀疑和动摇了宝玉的真实性，把它扔进了深山峡谷，即使宝玉也好不到哪里去，他也只能和石头在一起。但让人佩服的是边赫的自信，这让他成功了！
19世纪之前的300年里，数学家们一直忙于证明一元方程是否有四次以上的解。可惜他们要么退缩，要么半途而废，没有一个人能揭开这个心结。1818年，1岁的挪威人阿尔伯特，在研究了大量以往关于这个问题的资料后，坚定地对他的老师说：让我来回答这个历史问题，我可以证明这个方程是否有四次以上的解。凭着自信、聪明和勤奋，他用了六年时间给历史一个满意的答案：高于四次的方程没有代数解。这就是著名的阿尔伯特鲁菲尼定理。
是的，一旦你有了坚定的自信，人们可能会爆发出巨大的力量。如果周公谨没有信心，赤壁怎么会有大胜利？如果罗斯福没有信心，怎么可能连任两届？如果保罗呢？没有自信的盖茨如何达到事业的巅峰？成功研究的创始人拿破仑说：自信是人类使用和控制宇宙无限智慧的唯一渠道，是一切奇迹的基础，是一切科学规律都无法分析的神秘魔法的发源地。
当生命的轨迹倔强地向前延伸时，请挖掘自己对生活的信心。它会成为你不可摧毁的.信念，成为你蓬勃成长的土壤，成为你生命中永恒的活水，不断寻找前进的方向。
自信演讲稿300字 自信演讲稿800字篇四
尊敬的各位老师，亲爱的同学们：
大家上午好！
我是来自x班的xx，今天我演讲的题目是《学会自信》。
同学们都知道自信是一件很重要的事情，自信会让自己变得更加的有信心，自信也会让自己散发出光芒。但是在生活和学习中，很多的同学都做不到自信，总是怀疑自己的能力，觉得自己是不可能做到的，也因为不自信，吃了很多的亏。我举个例子，在考试之后对答案的时候同学们在跟他人的答案有出入的时候，特别是跟成绩比自己好的人答案不同的时候，是不是就会怀疑自己做错了，选择相信别人的答案是对的。但其实有的时候自己的答案才是正确的，只是我们不肯去相信自己。所以我们是一定要自信的，自信的人才会对自己有信心。
我们为什么要学会自信呢？若是我们能够做到自信，你就会发现你的生活会有了很大的变化，你觉得一切的事物都是美好的。我们若是不自信的话，不仅会让自己不断的去怀疑自己，也会影响到别人对我们的看法。当你的答案才是正确的时候，却因为你对自己的不自信，也让他人对你不自信，导致没有人会相信你，最后受到伤害的还是你自己。也因为你的不自信，明明是一件自己能够做好的事情，却因为自己认为自己做不到，对自己没有信心，因此没有付出自己的全部努力，最后也会让这件事情有着一个失败的结果。很多的事情自己还没有开始做就已经放弃了，这样不管是学习还是其它的事情都是不会有一个好的结果的。
我们每一个都是有优点的，我们要去发现自己身上的优点，并不是学习好才算得上是优点，每一个人的优点都是不一样的，所以不应该因为别人有而自己没有优点就急着去否定自己，不相信自己。只有你自己变得自信了，他人才会被你影响着去发现你身上的优点。同学们，我们要成为的是一个相信自己的人，一个自信的人，而不是一个一直否定自己的人，这样对你是没有一点好处的。就算自己之前做的不够好又怎么样，做的不如别人好又怎么样，并不代表着以后就会一直这样下去。
所以我们是必须要自信的，如果我们变得自信了在各方面都会有不一样的机遇和发展，用不一样的眼光看自己就会发现一个不一样的自己，我们不能只从一个角度来看待自己和评判自己。同学们，让我们都成为一个自信的人吧！
谢谢大家！
