"Look, I don't want to wax philosophic, but I will say that if you're alive you've got to flap your arms and legs, you've got to jump around a lot, for life is the very opposite of death, and therefore you must at very least think noisy and colorfully, or you're not alive"

The quote is a playful observation about the nature of life. Mel Brooks suggests that to genuinely live, we must actively engage with the world around us. This means being energetic, meaningful, and playful - "flapping your arms and legs" and "leaping around a lot." Life is a vibrant and loud experience, full of color and energy. To really live, we must embrace this loud and colorful presence, and not shy away from revealing ourselves in a likewise animated way. Brooks implies that if we stop working to do so, we are not genuinely alive.