R.j. Palacio said this quote
“ ...we should be remembered for the things we do. The things we do are the most important things of all. They are more important than what we say or what we look like. The things we do outlast our mortality. The things we do are like monuments that people build to honour heroes after they've died. They're like the pyramids that the Egyptians built to honour the Pharaohs. Only instead of being made out of stone, they're made out of the memories people have of you. That's why your deeds are like your monuments. Built with memories instead of with stone. ”