Abstract: This paper is simply to hurry psychologists who are interested in mental tests to end up the long history of the lack of a general definitionof INTELLIGENCE by presenting a viewpoint concerning it as "a piece ofstone that might earn me pieces of jade". We can hardly expect that intelligence can be explained with anytheory of a bundle of abilities or a bundle of tiny fragments, for intellige-nce is a unitary psychological phenomenon. It is believed that intelligence is the coordinating reflection of certaincharacteristics such as keeping the aim, associating widely and deeply, andthe flexibility of the cortical activities which transforms immediatly into itscorresponding psychological activities characterised by differences in intel-ligence as a result of various interactions. Whether the dendritic spines in the cortex are the physiological basesof intelligence needs further research.

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