Dos Passos wrote:

"Inventor of plans,

"plotter of tomorow's girderwork phrases,

"he [Farnk Lloyd Wright] preaches to the young men coming of age in the time of oprression, cooped up by the plasterboard partitions of finance routine, their lives and plans made poor by feudal levies of parasite money standing astride every process to shake down progress for the cutting of coupons:

"The properly citified citizen has become a broker, dealing chiefly in human frailties or the ideas and inventions of others, a puller of levers, a presser of buttons of vicarious power, his by way of machine craft... and over beside him and beneath him, even in his heart as he sleeps, is the taximeter of rent, in some form to goad this anxious consumer's unceasing struggle for or against more or less merciful of merciless money increment."

1 What does "coming of age" mean?

2. What does the blue phrase mean?

- for the cutting of coupons = for money?

3. What does Wright mean by "a puller of levers, a presser of buttons of vicarious power," and by "his [power?] by way of machine craft?"

Would you please help me to answer these questions?

Cadzao