"もしあなたがやろうとしていることが本質的にライバルと同じなら、非常に成功することは難しいでしょう。"

Simplified Meaning:

If you only try to do what everyone else is doing, you probably won't succeed much. Imagine you have a lemonade stand and so does everyone else in your neighborhood. If your lemonade tastes the same and costs the same as theirs, there is no reason for people to choose yours over theirs. But if you make your lemonade special by using fresh, organic lemons or offering a new flavor, people might prefer yours. In history, think about how Apple became famous. While other companies made regular phones, Apple made the iPhone which had a touchscreen and could do more than just call and text. This made them stand out and be successful. So, if you want to be successful, you need to find a way to be different or better than others doing the same thing. This could mean being more creative, offering something new, or being more skilled. It shows that trying to be unique and innovative often leads to greater success.