Knowledge is useful but for wisdom we must go beyond words. We are used to trusting and believing only what we see in front of our eyes. But if you think of a blind person, without being able to see the world around them, they still have courage and learn how to live and bring the qualities of life’s love and caring into their hearts.
In the same way, with the Dharma what you read is not as important as bringing the qualities into your heart. This is the real point of Dharma.