I think it must be fairly obvious to most of us that what we think is conditioned. Whatever your thought - however noble and wide or however limited and petty - it is conditioned, and if you further that thought there can be no freedom of thought. Thought itself is conditioned, because thought is the reaction of memory and memory is the residue of all your experiences which in turn are the result of your conditioning. So if one realizes that all thinking, at whatever level, is conditioned then we will see that thinking is not the means of breaking through this limitation, - which does not mean that we must go into some blank or speculative silence. Actually the fact is, is it not?, that every thought, every feeling, every action is conforming, conditioned, influenced.