[negative numbers] ‘…darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple.’

Francis Maseres in 1758 quoted in Rogers, Leo. The History of Negative Numbers, 2009 (nrich.maths.org, accessed 15 August 2021)., and quoted in : Bhaskar Kamble, The Imperishable Seed: How Hindu Mathematics Changed the World and why this History was Erased, Garuda Prakashan Private Limited, 2022 ISBN 9798885750189