Nothing is more certain, than that trade cannot be forced; she is a coy and humorous dame, who must be won by flattery and allurements, and always flies force and power; she is not confined to nations, sects, or climates, but travels and wanders about the earth, till she fixes her residence where she finds the best welcome and kindest reception; her contexture is so nice and delicate, that she cannot breathe in a tyrannical air; will and pleasure are so opposite to her nature, that but touch her with the sword, and she dies: But if you give her gentle and kind entertainment, she is a grateful and beneficent mistress; she will turn deserts into fruitful fields, villages into great cities, cottages into palaces, beggars into princes, convert cowards into heroes, blockheads into philosophers; will change the coverings of little worms into the richest brocades, the fleeces of harmless sheep into the pride and ornaments of kings, and by a further metamorphosis will transmute them again into armed hosts and haughty fleets.
 

– John Trenchard, Cato's Letters [1722]