He spoke rather slowly in a low voice and almost never repeated the same thing; he wrote very neatly on the blackboard but the colour of his chalk was rather light; the speed of flow of his lecture was quite rapid and the students had to listen with great attention.
Siya nagsalita sa halip dahan-dahan sa isang mababang boses at halos hindi paulit-ulit ang parehong bagay; siya wrote masyadong malinis sa pisara ngunit ang kulay ng kanyang isulat sa halip ay liwanag; ang bilis ng daloy ng kanyang mga panayam ay lubos na mabilis at ang mga mag-aaral ay upang makinig sa magandang pansin.