The quotations from the article which support the author's main argument are the following:
"As the economy becomes more technologically complex, the amount of education that people need will rise."
"Americans with four-year college degrees made 98 percent more an hour on average in 2013 than people without a degree."
"Among four-year college graduates who took out loans, average debt is about $25,000, a sum that is a tiny fraction of the economic benefits of college."
In his article, the author states the importance of a college degree. He claims that it is essential for college education to be an option, regardless of the fact that many students fear the costs are too high. According to studies cited in the text, the total cost of college education is negative $500,000 and the pay gap between the salary of a college graduate and a that of people with a high school degree or less is at a record high. The author believes that these results show that there is a need for college graduates in the workforce, supported by the fact that the pay gap is growing each year.