L'homme a un penchant naturel à imaginer des théories correctes de toutes espèces... Si l'homme n'était pas doué d'un esprit adapté à ses besoins, il… - Charles Sanders Peirce

Abduction is the process of forming an explanatory hypothesis. It is the only logical operation which introduces any new idea; for induction does nothing but determine a value and deduction merely evolves the necessary consequences of a pure hypothesis.

There is a kink in my damned brain that prevents me from thinking as other people think.

In all the works on pedagogy that ever I read — and they have been many, big, and heavy — I don't remember that any one has advocated a system of teaching by practical jokes, mostly cruel. That, however, describes the method of our great teacher, Experience.