Doubtfulness Quotes

The most irresistible compulsion for me is that of doubt. I have doubts about all, including my own doubtfulness. I believe little, and that not fully. Scepticism is for me not a "fine art" but an integral part of my existence. (Karlheinz Deschner)
Since sounds have no natural connection with our ideas ... the doubtfulness and uncertainty of their signification ... has its cause more in the ideas they stand for than in any incapacity there is in one sound more than another to signify any idea. View quote
John Locke