“you must be the change you wish to see in this world.”
how can this statement be applied to the lives of both gandhi and marshall?

That quote belongs to Gandhi. Mahatma Gandhi famously said, “You must be the change you want to see in the world.” In other words, although life changes are inevitable, we can also initiate personal change so we can rise to the challenge and become a bigger and better person as a result. How do we do this? We believe the best ways are to recognize that change is inevitable, that there is always the potential for positive change in every moment and to stay grounded and in touch with our peace. Mahatma became a better person and a great example of a good man. I don't know what for do you need this but I would recommend you to check how can Supreme essay guys help you. They always do a good job. Good luck!