"Next, food was manufactured to produce a still greater variety, to increase the flavour, or less frequently to produce an imagined greater digestibility or nutritiveness."
"In respect of nutritiveness, it deserves a preference over all the pure starches on account of the proteine compounds it contains."
"As Herbert Spencer has pointed out, the degree of human energy, physical or intellectual, must depend upon the nutritiveness of food; and history shows that the well-fed races have been the energetic and the dominant."