theorist

n.

理论家；学说创立人；空论家；

复数：theorists

1. Einstein was purely and exclusively a theorist.
   爱因斯坦完完全全是个理论家。
2. A theorist without practice is a tree without fruit.
   没有实践的理论家是一颗不结果实的树。

Dilemmas of an Economic Theorist
Theorist: A Logical Reasoning System for Defaults and Diagnosis
Theorist: a logical reasoning system for defaults and diagnosis
The Practical Theorist The Life and Work of Kurt Lewin.
The practical theorist : the life and work of Kurt Lewin
Data on air — What's in it for the database theorist
An economic theorist's book of tales: The market for “lemons”: quality uncertainty and the market mechanism
An economic theorist's book of tales : essays that entertain the consequences of new assumptions in economic theory
Hydrogen-related defects in crystalline semiconductors: a theorist's perspective
An economic theorist's book of tales: The economics of “tagging” as applied to the optimal income tax, welfare programs, and manpo...