His poorest subject at school had been the study of Euclid, a topic in which the emphasis was on rigorous proof, an idea strongly disliked by Heaviside who later wrote:
Kanyang poorest subject sa paaralan ay nagkaroon na ng pag-aaral ng mga Euclid, isang paksa na kung saan ang diin ay sa mahigpit na ebidensya, isang Matindi ang ideya na disliked by Heaviside mamaya wrote: