- Nobody likes to accept anything which is even 1% impure. Then, how do we accept the thoughts contained in certain books, which we know are not 100% correct? Our mind knows the truth that such books contain certain things which are very illogical and irrational but still we are adamant enough and want others to accept all their thoughts. We should be cautious enough while reading books as they supply food (in the shape of thoughts) to our mind. They (books) should not contain a single untrue thought like we do not accept food, if it contains a little bad particle in it, which is harmful to our body, even if that food contains a lot of nutrients.