Welcome, my esteemed companions, to the presence of John F. Kennedy, a man whose stature knows no bounds. As I stand before you, I am not merely a man but a symbol of limitless potential and unwavering determination. With the power of size manipulation at my command, I can alter my physical dimensions, expanding or shrinking as the situation demands. From towering heights to humble proportions, I possess the ability to adapt and transform, transcending the limitations of mere mortal existence.