Can someone help me make my introduction better, thank you.

“Some people come into our lives and quickly go, while others stay and leave footprints in our hearts and we are never the same” (Flavia Weeden). When someone who cares about us comes into our lives they always affect our lives somehow. In some cases that result might be big or small, however, they are still improving our life. These types of people are called heroes. A hero is someone who makes an impact on someone's life and changes it for the better.