From earliest childhood, we are so bound up with our system of numeration that it is a feat of imagination to consider the problems faced by early humans, who had not yet developed this facility.

从幼年初期时起，我们就与我们的计数系统紧密联系在一起，以至于考虑未开发计数能力的早期人类所面临的那些问题，就已经成为了想象力上的一次壮举。