He was an indefatigable worker, a universal letter writer (he had more than 600 correspondents), a patriot and cosmopolitan, a great scientist, and one of the most powerful spirits of Western civilisation.
Siya ay isang hindi marunong manggagawa, isang pandaigdig na sulat writer (siya ay may higit sa 600 Koresponsal), isang taong makabayan at kosmopolita, isang magaling na siyentipiko, at isa sa mga pinaka-malakas na loob ng Western civilisation.