الواصلة
if all you have I·s a hammer, eve·ry·thing looks like a nailالنطق
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() Likely traditional. In this form, perhaps from Abraham Maslow, The Psychology of Science, 1966, and his earlier book Abraham H. Maslow (1962), Toward a Psychology of Being:
:I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail. Similar concept by Abraham Kaplan, , 1964, page 28:
:I call it the law of the instrument, and it may be formulated as follows: Give a small boy a hammer, and he will find that everything he encounters needs pounding.