Orwell

I believe Orwell is trying to tell us that writing is not, and cannot be, simply a freely flowing record of the first things that come into one's mind. Writing is a discipline in itself that requires careful attention, studious thought and hard work. If you write only the words that jump into your mind first (likely to be irrelevant, useless clichés) you run the risk of incoherent writing, in which the ideas you are professing are either totally warped (by the use of words that are dated and intended for a different meaning entirely) or disappear altogether. When Orwell says "the worst thing one can do with words is surrender to them," he is saying that a writer cannot let the words be in charge. The writer must think carefully and analytically about each word he/she uses, in order to ensure that it is exactly the right word, with exactly the right meaning. If the writer 'surrenders' to the words and uses the first clichéd phrase that comes to mind, the intended message will be distorted (and eventually lost), perhaps even to the writer.