"A learned man once went to a Zen teacher to inquire about Zen. As the Zen teacher explained, the learned man would frequently interrupt him with remarks like, "Oh, yes, we have that too..." and so on. Finally the Zen teacher

stopped talking and began to server tea to the learned man. He poured the cup full, and the kept pouring until the cup overflowed. "Enough!" the learned man once more interrupted. "No more can go into the cup!" Indeed, I see," answered the Zen teacher. "If you do not first empty the cup, how can you taste my cup of tea?" -Bruce Lee

"He who knows not and knows not he knows not, He is a fool- Shun him. He who knows not and knows he knows not, He is simple- Teach him. He who knows and knows not he knows, He is asleep- Awaken him. He who knows and knows that he knows, He is wise- follow him." Bruce Lee

"Don't think; feel. It's like a finger pointing away to the moon. Don't concentrate on the finger, or you will miss all the heavenly glory." Bruce Lee in Enter The Dragon (1974)