Marconi's successes and the demonstrations he had given of the thoroughly practical character of this system of electric wave telegraphy stimulated other inventors to enter the same field of labour, whilst theorists began to study carefully the nature of the physical operations involved.
When William Harvey by his discovery of the circulation furnished an explanation of many vital processes which was reconcilable with the ordinary laws of mechanics, the efforts of medical theorists were naturally directed to bringing all the departments of medicine under similar laws.
The work of Giovanni Battista Morgagni (1682-1771) had and still preserves a permanent importance beyond that of all the contemporary theorists.
The Girondists were idealists, doctrinaires and theorists rather than men of action; they encouraged, it is true, the "armed petitions" which resulted, to their dismay, in the emeute of the 10th of June; but Roland, turning the ministry of the interior into a publishing office for tracts on the civic virtues, while in the provinces riotous mobs were burning the chateaux unchecked, is more typical of their spirit.
As to Gregory's political pretensions, zealous theorists were quick to transform them into legal principles; and though his immediate successors, somewhat deafened by the disturbance which they had aroused, seem to have neglected them at first, they were handed on to more distant heirs and reappeared in future struggles.