Who is John Galt

There will always be men of quality
Men who take nothing unearned and expect even less
Men of integrity and character whose word means a damn
Men who love their lives and their deeds and their wives
There will always be men of insight and thought
Who do not take the responsibility of opinion lightly
Men who honor their gifts and admit to the knowing
Men who know that when there is light there is darkness as well
There will always be men of courage and vision
Men who ignore the whims of the press and the times
Men who strive for the heights that most would not dare
There will always be men to prop up the rest
Men who’ll push straight ahead though disaster is looming
But now
The looters run loose and their numbers are booming
Who is John Galt?