The word is at the last line.What does 'public and illustrious' mean?
This definition excludes many individuals usually referred to as intellectuals -- the average scientist, for one.
I have excluded him because, while his accomplishments may contribute to the solution of moral problems, he has not been charged with the task of approaching any but the factual aspects of those problems.
Like other human beings, he encounters moral issues even in the everyday performance of his routine duties -- he is not supposed to cook his experiments, manufacture evidence, or doctor his reports.
But his primary task is not to think about the moral code which governs his activity, any more than a businessman is expected to dedicate his energies to an exploration of rules of conduct in business.
During most of his waking life he will take his code for granted, as the businessman takes his ethics.
The definition also excludes the majority of teachers, despite the fact that teaching has traditionally been the method whereby many intellectuals earn their living.
They may teach very well and more than earn their salaries, but most of them make little or no independent reflections on human problems which involve moral judgment.
This description even fits the majority of eminent scholars.
Being learned in some branch of human knowledge is one thing, living in "public and illustrious thoughts, ” as Emerson would say, is something else.