There were those who envied him his fame; and as his theories, resting upon known facts, were in opposition to the systems of science upon the question of the central fire, he sustained with his pen and by his voice remarkable discussions with the learned of every country.
Nem is volt bennük hiány; és minthogy a tényeken alapuló elméletei mind cáfolták a középponti hő teóriáját, szóban és írásban állandó vitákat folytatott a világ minden táján élő tudósokkal.