Tompkins is much more than an anti-business theorist or a conservation advocate.
From the rendezvous.blogs.nytimes.com
Epistemology is an examination of how the theorist studies the chosen phenomena.
From the en.wikipedia.org
Aguirre's critics call him a publicity hound, a conspiracy theorist and a bully.
From the signonsandiego.com
He brought a reputation as a leading Indian nationalist, theorist and organizer.
From the en.wikipedia.org
Ervin Laszlo is a systems philosopher, integral theorist, and classical pianist.
From the scienceblogs.com
He appears to be a loner and conspiracy theorist of a vaguely right-wing variety.
From the economist.com
And you are like, this conspiracy theorist except there really is a conspiracy.
From the npr.org
A key early socialist theorist of political economy was Pierre-Joseph Proudhon.
From the en.wikipedia.org
Ceasius Bassus was one such metrical theorist, as well as being a poet himself.
From the en.wikipedia.org
More examples
Someone who theorizes (especially in science or art)
In philosophy, theory (from ancient Greek theoria, , meaning "a looking at, viewing, beholding") refers to contemplation or speculation, as opposed to action. ...
The game of chess is commonly divided into three phases: the opening, middlegame, and endgame. As to each of these phases, especially the opening and endgame, there is a large body of theory as how the game should be played. ...
(THEORISTS (Revolutionary)) [Intro material to be added... ]
Theorists are 'big picture' people who seek linkages between existing and new information, and establish relationships between ideas, events and situations. They like to ask questions - to challenge assumptions, to analyse and participate in complex situations. ...