Context: There are occasional brief hints and allusions in his longer works however that Avicenna considered philosophy as the only sensible way to distinguish real prophecy from illusion. He did not state this more clearly because of the political implications of such a theory, if prophecy could be questioned, and also because most of the time he was writing shorter works which concentrated on explaining his theories on philosophy and theology clearly, without digressing to consider epistemological matters which could only be properly considered by other philosophers.

Question: What did Avicenna consider to be the only way to distinguish real philosophy from illusion?
Answer: philosophy

Question: What did Avicenna fear about stating his theories on philosophy more clearly?
Answer: the political implications of such a theory

Question: What did Avicenna not consider when explaining his theories on philosophy?
Answer: epistemological matters

Question: What did Avicenna consider an illusion?
Answer: Unanswerable

Question: Who wrote about distinguishing philosophy from prophecy?
Answer: Unanswerable

Question: Why did Avercenna not explain his theories to others?
Answer: Unanswerable

Question: What did Avicenna consider to be the only way to distinguish fake prophecy from illusion?
Answer: Unanswerable

Question: What did Avicenna consider to be the only way to distinguish real philosophy from illusion?
Answer: Unanswerable

Question: What did Avicenna love about stating his theories on philosophy more clearly?
Answer: Unanswerable

Question: What did Avicenna fear about stating his theories on biology more clearly?
Answer: Unanswerable

Question: What did Avicenna consider when explaining his theories on philosophy?
Answer: Unanswerable