Roosevelt says the foundations of a healthy and strong democracy are:
equality of opportunity for youth and for others.
jobs for those who can work.
security for those who need it.
the ending of special privilege for the few
the preservation of civil liberties for all.
the enjoyment of the fruits of scientific progress in a wider and constantly rising standard of living.
what does he say is necessary to make these things possible?

In order to make these things work, Roosevelt asked for higher taxes to be paid by the American citizens.

Explanation:

In his "State of the Union Address of 1944", President Franklin D. Roosevelt tells the American citizens of the need to pay close attention to the youths in particular. They are the future of the country, and they need to be given lots of opportunities to make "a healthy and strong democracy" for them . Jobs, security, and other necessities are needed by them which is hard to find, looking at the present economy of America. To make things possible, he asks of the American people to make personal sacrifices. These sacrifices will be the building blocks of the youths' future. And so, if the people are willing to pay higher taxes, then all of the above plans for the nation will be a possibility.

i’m alive so yes and the author is a technique idiom