Now human behaviour differs from animal behaviour precisely because of the fact that human beings can speak and animals cannot. ..... Even a small child, knowing the words 'banana' and 'stick', has a conceptual notion of their relationship and is consequently able to think of 'stick' in conjunction with 'banana' even when the stick is behind him and to remember this long enough to pick thestick up and use it on the bananas.
――電気通信大学 前期日程(2月25日実施)――98年