A detective who uses his deductive powers to corner a suspect and then does nothing to stop them from committing suicide is no better than a murderer himself. - Kudo Shinichi
Through all the years of experimenting and research, I never once made a discovery. I start where the last man left off. . . All my work was deductive, and the results I achieved were those of invention pure and simple.
I'm not a great deductive thinker, but I will admit to having competence in a very wide range of things - not being afraid to try to write about baseball, choral music and dinosaurs in the same week and see connections among them.
I am delighted to know that Principia Mathematica can now be done by machinery. . . I am quite willing to believe that anything in deductive logic can be done by machinery.
All that the world needs most today, is combined in the most deductive manner in his art; the three great stimulants of exhausted people: brutality, artificiality, and innocence (idiocy).
Mathematics, in its widest significance, is the development of all types of formal, necessary, deductive reasoning.
The deductive method is the mode of using knowledge, and the inductive method the mode of acquiring it.
If a lack of empirical foundations is a defect of the theory of logical probability, it is also a defect of deductive logic.
Mathematics - this may surprise or shock some - is never deductive in creation.
