Attitude in Reading
Our attitude will make a lot of difference in what we learn and/or understand from our reading.
Some people read with a purpose of proving that they are right in their (opinions that they call their) beliefs. They look for words and phrases that support their opinions. They disreguard or retranslate in their minds anything that may contradict their opinions. This may be so automatic or habitual that they don't even realize they are doing it.