Below I am quoting the entire Kahlija's post:
"I used to read only in Polish, but recently I found reading in English enormously helpful and useful when it comes about mastering this beautiful language. Especially because I used to have many problems with Writing Part, when I was doing the FCE course. My English teacher once told me that reading may improve my own writing style as well as it enriches vocabulary. Now as I'm preparing for CAE exam I know he couldn't have been further from the truth.
My favourite author is Gabriel Garcia Marquez, Ernest Hemingway and Jonathan Carroll."
Now, in the first sentence she states that reading helps mastering English (her own experience). From the third sentence, we know that her teacher encouraged her to read more English literature (in English). In the fourth one, she then states that, basically, the tutor was mistaken when it comes to enriching one's vocabulary by reading English books (the part "he couldn't have been further from the truth" tells us that she thinks he was wrong).
My point is that this second part of her fourth sentence does not match what she wrote before.
I could say: "I am taking vitamins to stay healthy. My doctor encouraged me to take more vitamins to stay healthy. I am healthy now due to taking lots of vitamins, I know now that he (the doctor) could not have been further from the truth."
Can you see that it does not make sense when I wrap up my statement with "he couldn't have been further from the truth"? -> I followed my doctor's advice, I am healthier now, yet I keep saying that he was wrong.
This is what I gathered from Kahiljia's statement: her vocabulary greatly improved because she read lots of English books, she then admits that it was her teacher's suggestion/opinion and then she says that he was wrong.
Please do not feel offended Kahljia, I am just confused. I read your post a few times and still do not know if you are pro- or against.
:o)