31、"A taste for collecting per se developed in Greece (4th-1st century BC). The great art collections of the world grew out of private collections formed by royalty, aristocracy, and the wealthy."
32、"a typical wording is as follows: "On all copies of the said work sold on the normal terms a royalty of 10 percent shall be paid on the published price rising to 12 percent after the sale of 5,000 copies and to 15 percent after 10,000 copies."
