Grown-ups never understand anything by themselves， and it is tiresome for children to be always and forever explain things to them. so then i choose another profession ,and learned to pilot airplanes. i have flown a little over all parts of the world ,and it is true that geography has been very useful to me. and at a glance i can distinguish China from Arizona .if one gets lost the night ,such knowledge is valuable. 这些大人们靠他们自己什么也弄不懂，还得老是不断地给他们做解释，这真叫孩子们腻味.后来我只好选择了另外一个职业，我学会了开飞机。我在世界各地飞行，的确，地理学帮了我很大的忙。我一眼就能分辨出中国和亚利桑那。要是夜间迷失了航向，这是很有用的。