It was to-day, whilst threading the precipitous mountain-path, I observed the unhappy negress, who went blind and mad by overdriving.
"Travels in the Great Desert of Sahara, in the Years of 1845 and 1846"
James Richardson
So also after a long storm either in seed or crop time, when the weather becomes favorable, the same temptation presses, and in all these cases the master would save money by overdriving his slaves.
"The Anti-Slavery Examiner, Omnibus"
American Anti-Slavery Society