This philosopher's beliefs were described as "pagan mud" by an early translator, Lucy Hutchinson. This philosopher expressed a wish "that reason, rather than the fact itself, persuade us" after emphasizing the power of "fortune, the steersman." This philosopher imagined the psychology of a cow whose child is taken for sacrifice, before condemning Iphigenia's death (-5[1])as an example of "the crimes to which (-5[2])religion leads." This philosopher's analysis of dust motes in sunbeams is often cited as an early description of Brownian motion. This philosopher attributed free will to clinamen, or "swerve," a concept which (-5[1])this philosopher (10[1])used to describe atomic motion. (-5[1])This philosopher addressed Gaius Memmius in a six-book didactic poem about Epicurean philosophy. For 10 points, which Roman philosopher wrote On the Nature of Things? ■END■ (10[2]0[5])