Excellence is often achieved by repeated practice and efforts.

 I agree that excellence is often achieved by repeated practice and efforts. However, it's also important to note that some people may have a natural talent or a knack for certain activities or tasks that can contribute to their level of excellence. However, even those who are naturally inclined may still need to put in effort and hard work to achieve top levels of performance. So while repetition is an important factor, it's not the whole story in the realm of excellence.