Memorabilia (1.1.11-1.1.15)

He did not even discuss that topic so favoured by other talkers, the Nature of the Universe: and avoided speculation on the so-called Cosmos of the Professors, how it works, and on the laws that govern the phenomena of the heavens: indeed he would argue that to trouble one’s mind with such problems is sheer folly.

In the first place, he would inquire, did these thinkers suppose that their knowledge of human affairs was so complete that they must seek these new fields for the exercise of their brains; or that it was their duty to neglect human affairs and consider only things divine?

Moreover, he marvelled at their blindness in not seeing that man cannot solve these riddles; since even the most conceited talkers on these problems did not agree in their theories, but behaved to one another like madmen.

As some madmen have no fear of danger and others are afraid where there is nothing to be afraid of, as some will do or say anything in a crowd with no sense of shame, while others shrink even from going abroad among men, some respect neither temple nor altar nor any other sacred thing, others worship stocks and stones and beasts, so is it, he held, with those who worry with Universal Nature. Some hold that What is is one, others that it is infinite in number: some that all things are in perpetual motion, others that nothing can ever be moved at any time: some that all life is birth and decay, others that nothing can ever be born or ever die.

Nor were those the only questions he asked about such theorists. Students of human nature, he said, think that they will apply their knowledge in due course for the good of themselves and any others they choose. Do those who pry into heavenly phenomena imagine that, once they have discovered the laws by which these are produced, they will create at their will winds, waters, seasons and such things to their need? Or have they no such expectation, and are they satisfied with knowing the causes of these various phenomena?