Some recent philosophers seem to have given their moral approval to these deplorable verdicts that affirm that the intelligence of an individual is a….

A few modern philosopher's assert that an individual's intelligence is a fixed quantity, a quantity which cannot be increased. We must protest and re….

Heredity, to our understanding is not capable of giving to this illness (paraphilia) its characteristic form ... Heredity invents nothing, creates no….

Could we look into the head of a Chess player, we should see there a whole world of feelings, images, ideas, emotion and passion.

A person may be a moron or an imbecile if he is lacking in judgment; but with good judgment he can never be either. Indeed the rest of the intellectu….

Our purpose is to be able to measure the intellectual capacity of a child who is brought to us in order to know whether he is normal or retarded. ...….

The intelligence of an individual in not a fixed quantity..

The scale, properly speaking, does not permit the measure of the intelligence, because intellectual qualities are not superposable, and therefore can….

It seems to us that in intelligence there is a fundamental faculty, the alteration or the lack of which, is of the utmost importance for practical li….

Mere numbers cannot bring out ... the intimate essence of the experiment. This conviction comes naturally when one watches a subject at work. ... Wha….

I wish that one would be persuaded that psychological experiments, especially those on the complex functions, are not improved [by large studies]; th….

Comprehension, inventiveness, direction, and criticism: intelligence is contained in these four words..