To avoid too much passivity is an educational problem. It demands, in play, the absence of elaborate apparatus and no undue respect for exceptional skill; in work, encouragement of active investigation rather than mere listening to knowledge imparted by means of lectures. Unfortunately the authorities like passivity because it is convenient.
Source: Are we too passive? (written in Feb. 3, 1932 and published in Mortals and Others, v.1, 1975)
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