“There is always more in one of Ramanujan’s formulae than meets the eye, as anyone who sets to work to verify those which look the easiest will soon discover. In some the interest lies very deep, in others comparatively near the surface; but there is not one which is not curious or entertaining ”, Hardy in “ Collected papers of SR”.

“ The series formulae I found much more intriguing, and it soon becomes
obvious that Ramanujan must possess much more general theorems”.