求指点，求批评

gholentUID: 3101347

TOPIC: ISSUE153 - "Students should bring a certain skepticism to whatever they study. They should question what they are taught instead of accepting it passively."
WORDS: 357          TIME: 00:30:00          DATE: 2011/11/10 15:50:40



The speaker concludes that it is necessary to hold a skeptical stand to the knowledge a student learns, but not just accept them without a critic. It is true that no one can assert the knowledge established from a generation to another to be completely correct, but it still stands for, to a degree, a good or reasonable one. I hold my mind to agree the speaker's assertion on some parts.
It is obvious that each point of every subject is worthy believing to a degree, which based on a long-term study. No subject is formed as an ephemeral mind without any substantiation. For  instance, the knowledge of physics has been formed and overturned several times during the thousands of years. As we known, the three principals of Newtown were founded many many years ago, it was the important infrastructure of the whole physics before the discovery found by Einstein, whose The Relative Theory, in a way, proves the invalid of principals of Newtown. This proceed takes thousands of years in human history and is credible in today's world.
But the truth is that the subject, no matter what it focuses on, contains lots of variable parameters, which may be a constant for a long period but, in fact, not be constant. For example, the parameter of the gravity is always a fixed number at one place, based on this fact we come to a formula as well known for calculating the weight of a thing. But the parameter eventually changes at different places which made the formula change as well.
Finally, it is always the case that some results come from an unfair assumption which needs us to verify. As principals of Newtown is based on the assumption that the space is fixed, which proved to be a fault by Einstein with establishing his own theory that did not subvert till now.
In conclusion, without suspecting on the knowledge you engaged in is perhaps not a good idea, without doubting on the assumption the knowledge based on is maybe not an excellent way to research. To making the knowledge more complete, we should bring a certain skepticism to whatever we study.