To pay attention to one's ideas.
To think only significant thoughts. To learn little by little to separate in one's thoughts the essential from the nonessential, the eternal from the transitory, truth from mere opinion.
In listening to the talk of one's fellow-men, to try and become quite still inwardly, foregoing all assent, and still more all unfavourable judgments (criticism, rejection), even in one's thoughts and feelings.
This may be called: