

In Book 3 he expounds the nature and composition of mind and spirit, proves their mortality, and argues that there is nothing to fear in death. In Book 2 he explains atomic movement, the variety of atomic shapes, and argues that the atoms lack colour, sensation, and other secondary qualities.

In Book 1 he establishes the general principles of the atomic system, refutes the views of rival physicists, and proves the infinity of the universe and of its two ultimate constituents, matter and void. In six books compounded of solid reasoning, brilliant imagination, and noble poetry, he expounds the scientific theories of the Greek philosopher Epicurus, with the aim of dispelling fear of the gods and fear of death and so enabling man to attain peace of mind and happiness. He is the author of the great didactic poem in hexameters, De Rerum Natura (On the Nature of Things). 55 BCE, but the details of his career are unknown. Lucretius (Titus Lucretius Carus) lived ca.
