Why do philosophers seem to think that EVERY WORD is a concept they can understand unto/by/as itself??
That is frankly and clearly STUPIDITY beyond belief. It is lack of contact with Reality.
Some of these same concepts are well-understandable, as they are in different specifiable contexts (so, for example, "consciousness" is not a "problem" except for idiotic philosophers, as just described, when the key importance of context is appreciated).
Between believing they can "define" anything, their is rampant "reasoning" by-analogy. More idiocy!
Grasp the way real science is and forget philosophy!! Banish the term/'concept' of philosophy itself. Quit with the ARROGANT, presumptuous "defining" (YOUR "defining" is NOT defining). Rather find how you do not think well or clearly - that would be a better task for those who hold themselves as "philosophers"!
These philosophy jokers so much believe deduction is the full heart of thinking/'reasoning' , that they have very little appreciation for that which is really most important, BY FAR: induction (and inductive reasoning).
Philosophy is the disgrace of Western 'civilization' and why there has (in fact, actually) not yet been an Age of Reason. To banish the word "philosophy" seems like it may be a 'therapeutic' good start. Philosophers are harbingers of irrationality (THAT, by far, in the main).