Bad reasoning as well as good reasoning is possible; and this fact is the foundation of the practical side of logic.
Charles Sanders PeirceIt is certain that the only hope of retroductive reasoning ever reaching the truth is that there may be some natural tendency toward an agreement between the ideas which suggest themselves to the human mind and those which are concerned in the laws of nature.
Charles Sanders Peirce... and it is probably that there is some secret here which remains to be discovered.
Charles Sanders PeirceIt is not too much to say that next after the passion to learn there is no quality so indispensable to the successful prosecutionof science as imagination. Find me a people whose early medicine is not mixed up with magic and incantations, and I will find you a people devoid of all scientific ability.
Charles Sanders Peirce