This is a wonderful quote from Confucius who had alot of knowledge that he gave to the world that we still can learn from. It is amazing that hundreds of years ago he had figured these out and they still apply since our world changes but people stay the same. If you are always striving and trying then it does not matter at what speed you do it. Some people think they are better because they learn faster but it is like the story of the turtle and the rabbit. Slow and steady will always win because you are continuing to learn. Moving fast feels good since you get instant satisfaction but then you are not learning all the time and have large breaks where the turtle will catch up to you, then surpas.
https://www.brainyquote.com/quotes/confucius_140908?src=t_motivational