Early childhood is of immeasurable importance both medically and psychologically. These two aspects are very closely intertwined. ... The great principle in a contest with a child is : do not yield, but do not punish. The normal parent sometimes yields for the sake of a quiet life, and sometimes punishes from exasperation ; the right method, to be successful, requires a difficult combination of, patience and power of suggestion. This is a psychological example; fresh air is a medical example.
Source: On Education, especially in early childhood, 1926, by Bertrand Russell
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