"The commonest things are the most useful."

"I am convinced that if all who are of the same opinion were to meet, the place of meeting would not be large enough to contain them."

"I am not concerned to prove the justice of my opinion, but to show its usefulness."

"Those who are more thrifty may flay the carcass, the skin of which, artificially dressed, will make admirable gloves for ladies and summer boots for fine gentleman."

"I calculate that the charge of nursing a beggar's child (in which list I reckon all cottagers, labourers, and four-fifths of the farmers) to be about two shillings per annum, rags included; and I beli…"