This is from the fourteen mindfulness trainings from Thich Nhat Hanh. You can see them and more related information on the Deer Park Monastery website.
The Second Mindfulness Training: Non-attachment to Views
Aware of suffering created by attachment to views and wrong perceptions, I am determined to avoid being narrow-minded and bound to present views. I will learn and practice non-attachment from views in order to be open to others’ insights and experiences. I am aware that the knowledge I presently possess is not changeless, absolute truth. Truth is found in life and I will observe life within and around me in every moment, ready to learn throughout my life.
I’ve found three little words that can really open my mind to some new views. They are “tell me more”. Okay, you can use four words if you like: “Please tell me more”. After you do, then simply listen. It’s a great way to see things, if even for a moment, from very likely a different point of view.