Charles S. Peirce, polymath, philosopher, logician, lived a life of often wild extremes and, when he died in 1914, had earned a vile reputation as a debauched genius. Yet he created a unified, profound and brilliant work, both published and unpublished, a fact difficult to explain. In my 1993 biography, I proposed three hypotheses to account for his Jekyll-Hyde character: his obsession with the puzzle of meaning, two neurological pathologies, trigeminal neuralgia and left-handedness, and the powerful influence of his father. (...) After publication, further research has led me to propose two additional hypotheses to explain his extraordinary life: manic-depressive illness and mystical experience, the last greatly influencing the development of his doctrine of semeiotic, of which his logic of science is a part. (shrink)

Twenty years ago I put a sign on the door to my office —and it’s still there— with the sentence of Peirce that I have used in my title: "The life of science is in the desire to learn" (CP 1.235, c.1902). I learned this quote from the late professor of logic at MIT, George Boolos. Like him, I put it on my door to invite students to come in to inquire, to ask questions, since their questions are not just (...) the life of science, but also the sparks that inflame my passion for teaching. Those —professors and students— who desire to learn are the real agents, the main characters, of philosophical development. Philosophy should not be understood and taught as the transmission of old solutions to outdated problems, but as a way of life devoted to learning the truth wherever we might find it. My exposition will be divided into four sections: 1) A brief presentation of Peirce, focusing on his work as a professional scientist and a scientific philosopher; 2) Peirce considered as an educational philosopher; 3) Some practical suggestions I have drawn from Peirce's ideas and from my experience teaching philosophy today; and finally, 4) A brief conclusion. (shrink)