The Italian Jews devoted themselves with ardour to the service of the state.
The Prussians were not experienced troops, but were full of ardour and hatred of the French.
His ardour for historical studies was further stimulated by Schlozer, when Muller went (1769) to the university of Gottingen, nominally to study theology.
Had he lived long enough to overcome his martial ardour, and develop and organize the empire he helped to create, Sweden might perhaps have remained a great power to this day.
He then devoted himself with astonishing ardour to mathematics, chemistry, natural history, technology and even political economy.