I am not a tall person. I level out at about 5 foot nothing, in my stockinged-feet. My hand are proportional to my height; they're small and square. For this reason, I've always avoided full-sized chef's knives, opting for smaller 8-inch knives. Full-sized knives make me nervous; can I handle them? Can I take advantage of their weight, or will they be harder to use safely? Well, chef Sara Moulton is petite herself, but she has a convincing argument. Yes, even small people need big knives.