A glass is full. The glass is looking for a more liquid feeling. The glass wants more liquid inside. It's not possible till you take some liquid out and then put new liquid. Learn to unlearn.
When we say unlearn, we don't mean to destroy our knowledge and learning. We mean to be adaptable and flexible to newness, and to new beliefs. Learn to unlearn.
Often, to see through a new window, we may have to close an old one. There is no other choice. Learn to unlearn.