Dear Friends, 
With regard to Panini, Euclid and Galileo Galilei, I thought it would be appropriate to be concise rather than prolix. 
In order to achieve this conciseness, I have, perhaps not surprisingly, taken recourse to Sanskrit. 
So for anyone having a few minutes to spare, here are some thoughts on Panini and Euclid: 
With best wishes for Christmas and New Year.
Jan Houben
-- 
Prof. Dr. Jan E.M. Houben,
Directeur d Etudes « Sources et Histoire de la Tradition Sanskrite »
Ecole Pratique des Hautes Etudes, SHP,
A la Sorbonne,45-47, rue des Ecoles,
75005 Paris -- France. 
JEMHouben@gmail.comwww.jyotistoma.nl