Lecture one: historical context: what is at stake -- Lecture two: induction: the perennial value of the Aristotelian perspective -- Lecture three: the principle of substance -- Lecture four: potentiality uncovered -- Lecture five: the principle of final causality -- Lecture six: use and abuse of analogy and metaphor in scientific explanation -- Lecture seven: science and the shaping of modernity: the reciprocal influence of science and culture.