Tony Cliff, an inspirational leader.

“Intellectual toughness does not mean dogmatism; grasping a changing reality does not mean vagueness. Our criticism of orthodox Trotskyism was conceived as a return to classical Marxism.” – Trotskyism after Trotsky

http://www.marxists.org/archive/cliff/

'Think tanks'...copyleft Naomi Klein

... Think Tanks are people who are paid to think by the people who make tanks.