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.
Así sucedió, en efecto, y, como sus teorías, basadas en hechos ciertos, contradecían los sistemas establecidos por la ciencia sobre la cuestión del fuego central, sostuvo verbalmente y por escrito muy notables polémicas con los sabios de todos los países.