Further, the typical locomotions of the elementary natural bodies-namely, fire, earth, and the like-show not only that place is something, but also that it exerts a certain influence. Each is carried to its own place, if it is not hindered, the one up, the other down. Now these are regions or kinds of place-up and down and the rest of the six directions. Nor do such distinctions (up and down and right and left, &c.) hold only in relation to us. To us they are not always the same but change with the direction in which we are turned: that is why the same thing may be both right and left, up and down, before and behind. But in nature each is distinct, taken apart by itself. It is not every chance direction which is 'up', but where fire and what is light are carried; similarly, too, 'down' is not any chance direction but where what has weight and what is made of earth are carried-the implication being that these places do not differ merely in relative position, but also as possessing distinct potencies.
谢谢二位,你们显然都是各自领域里的专家。Wish to hear a lot more from you both. "A brief history of time" is indeed very difficult to read and few people will enjoy reading it, but it does make it a bit easier to understand the concepts of space, time, and relativity. But let's not hasten to make a judgement on the book.
'无知无为',
I am enormously interested in why the 'TMD' (笑)Greek would be thinking about what the earth was and how the universal worked as a system, and Aristotle even discussed the concept of 'Time'. Space and Time? Come on! It would matter little, or not at all, if the earth was flat or square in those early days. What would cause them even to think about such things? Also the Euclid geometry was so perfect and correct that it still stands true after 2300 years. What caused them to study geometry to such a great depth, which was totally impractical, and absolutely useless, in those days. 能当饭吃啊?
I hope you understand why I am asking such questions, out of shear curiosity. As you said 有点二百五精神. 谢谢。
waveheatin 发表评论于
回复 '无知无为' 的评论 :
谢谢你的鼓励。 我不再为自己是中国人自卑了。 剩下的最大自卑就只有这个了。I know you are an Greek expert. Please help me in my struggle in seeking an answer to my question. It is really an academic exercise for me, no emotion attached, definitely not a national pride thing for me. Thank you. 谢谢
waveheatin 发表评论于
回复 '笑尘' 的评论 :
I am not yet able to comment on your view, which I think is incredibly interesting, and I truly wish you can write more about it. I will be the very first one to read it.