i dont know if this is 80-90 words but I'll help you get started
"you can't live a positive life with a negative mind" this meaning you can't have a good life if your not good along with it for example if you do something bad don't expect to get something good in return. Help people and maybe they'll help you back with something you need or want. Spread kindness to the people around you because there's no taking back what you did but there's always starting new . Treat people the way you want to be treated , show them respect , show them that no matter what your going to kind because that's the only way you'll ever get somewhere in life