A slightly older boy or girl remains always a very effective stimulus to ambition, and, if kind, can explain difficulties better than an adult, from the recent recollection of overcoming them. Even at the university I learnt much from people a few years senior to me which I could not have learnt from grave and reverend signors. I believe this experience is general wherever the social life of the university is not too rigidly stratified by "years".
Source: On Education, especially in early childhood, 1926, by Bertrand Russell
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