"The object of the present volume is: to indicate the character and, approximately, the extent of changes produced by human action in the physical conditions of the globe we inhabit; to point out the dangers of imprudence and the necessity of caution in all operations which, on a large scale, interfere with the spontaneous arrangements of the organic or the inorganic world... [and] to suggest the possibility and the importance of the restoration of disturbed harmonies and the material improvement of wasted and exhausted regions..."
"It was while I was living in Hull-House and working in bacteriological research that the opportunity came to me to investigate the dangerous trades of Illinois - not those where violent accidents occurred, but those with the less spectacular hazard of sickness from some industrial poison...
...The employers could, if they wished, shut their eyes to the dangers their workmen faced, for nobody held them responsible, while the workers accepted the risks with fatalistic submissiveness as part of the price one must pay for being poor."