Removing doubts. . .

There is no use removing doubts. If we clear one doubt, another arises, and there will be no end of doubts. All doubts will cease only when the doubter and his source have been found. Seek for the source of the doubter, and you find he is really nonexistent. Doubter ceasing, doubts will cease. -- Ramana Maharshi

Self-improvement

From Felipe Oliviera:

Self-improvement is ultimately unrelated to the pursuit of freedom because whatever can be improved is not the real self.