以下是一篇英语励志短文：

"Believe you can and you're halfway there." This quote by Theodore Roosevelt has been a source of inspiration for many people throughout history. It reminds us that our thoughts and beliefs have the power to shape our reality.

If we believe that we can achieve something, then we are more likely to put in the effort and take the necessary steps to make it happen. On the other hand, if we doubt ourselves and our abilities, we may give up before even trying.

Of course, believing in oneself is not always easy. We all face challenges and setbacks along the way. But it's important to remember that failure is not the end – it's an opportunity to learn and grow.

So if there's something you want to achieve, don't let fear or self-doubt hold you back. Believe in yourself and your potential, and keep pushing forward. You may be surprised at what you can accomplish.

　　励志英语精美短文

　　Whether sixty or sixteen, there is in every human being's heart the lure of wonders, the unfailing childlike appetite of what's next and the joy of the game of living. In the center of your heart and my heart there is a wireless station: so long as it receives messages of beauty, hope, cheer, courage and power from men and from the infinite, so long are you young.

无论是60岁还是16岁，你需要保持永不衰竭的好奇心、永不熄灭的孩提般求知的渴望和追求事业成功的欢乐与热情。在你我的心底，有一座无线电台，它能在多长时间里接收到人间万物传递来的美好、希望、欢乐、鼓舞和力量的信息，你就会年轻多长时间。