" A conversation between Gandhiji and Narayana Guru is significant. Gandhiji, in an obvious reference to Chaturvarna and the inherent differences in quality between man and man, observed that all leaves of the same tree are not identical in shape and texture. To this Narayana Guru pointed out that the difference is only superficial, but not in essence: the juice of all leaves of a particular tree would be the same in content.8 "

― Bipan Chandra , India's Struggle for Independence