Michael D. Palmer, Stanley M. Burgess."His emphasis on the education of the Shudras is well explained in his own words: For want of education intellect deteriorated, For want of intellect morality decayed, For want of morality progress stopped, For want of progress wealth vanished, For want of wealth Shudra perished and all these sorrows sprang from illiteracy." // The Wiley-Blackwell Companion to Religion and Social Justice. — John Wiley & Sons, 2012-03-12. — 665 с. — ISBN 978-1-4443-5537-6.