Wiktionary
there are none so blind as those who will not see
prov. Understanding cannot be forced on someone who chooses to be ignorant.
Usage examples of "there are none so blind as those who will not see".
It is to questions such as these that spiritual philosophy is applied, where we search for these answers, knowing that a human mind can understand and comprehend these answers to the level of his own knowledge, understanding and comprehension, also his willingness only to believe what he wants to believe, for 'there are none so blind as those who will not see'.
How true it is that there are none so blind as those who will not see!
There are those here that I have told, but there are none so blind as those who will not see.