so, if 'constitution' (temperament) never changes, which is ok by me, then what does change is its expression either through 'illness' or through 'personality.' both of these, however, are like close-fitting gloves, or put another way, constitution is the superstructure - traits and symptoms the facade, through which we perceive the superstructure, however dimly. this is why an illness in "bill" is different than the same illness in "molly." even the same symptom may be more 'characteristic' for one than for another, though its grading in the repertory, obviously, remains unchanged.

the temporary does not exist except as a transient realization of the permanent, hans. this is why there are constitutional remedies.

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"The need to perform adjustments for covariates...weakens the findings." BMJ Clinical Evidence: Mental Health, (No. 11), p. 95.... It's that simple, guys: bad numbers make bad science.