I was listening to some songs by the band Hatebreed and two songs have kind of profoundly positive lyrics:

https://www.youtube.com/watch?v=VLJrg_IteSo

If you want to make a difference in the world it means
You have to be different from the world you see

https://www.youtube.com/watch?v=r-OrUh4kNW4

If you think you should judge someone
Start with yourself
If you want to take control
Start with yourself
Something you see needs respect
Start with yourself
And if you want to change the world, you have to
(Start with yourself)