wisdom of A"Benjamin Franklin - An american life" by Water Isaacson, caugt me surprise with the following:
1) He advocated the national laws/policy to build up a strong middle class. For his own children, he predicted them to be in the middle class, not super rich like him. Compared with Chinese officials (below), Chinese officials only want to reinforce their power, not for their children (or send them to Western countries).
2) BF promoted natural life: sun bathe, wind bathe, snow bathe, rain bathe - naked running around.