This is one of the most sound advice I have heard, when it comes to dealing with criticism. I heard it from non other than Reid Hoffman, one of the founders of LinkedIn.
Not everybody comes from the same frame of reference, and they interpret things differently. So it helps to check whether if their judgement is valid under the current circumstances.
When you hear something that is mostly in opposition of what you think, it helps to answer the question: “What do I know that they don’t?”.
If there is something radically important that is the answer to that question, and that would make a difference for their judgement, then you can ignore it. But if there is nothing, you better hear them out.