"Well, Humphry Davy did call upon me on his way through Hamburg. We were long engaged in discussing, amongst other problems, the hypothesis of the liquid structure of the terrestrial nucleus. We were agreed that it could not be in a liquid state, for a reason which science has never been able to confute."
—Pues bien, Humfredo Davy vino a verme a su paso por Hamburgo, y discutimos largo tiempo, entre otras muchas cuestiones, la hipótesis de que el interior de la tierra se hallase en estado líquido, quedando los dos de acuerdo en que esto no era posible, por una razón que la ciencia no ha podido jamás refutar.