That very concentration of vision and intensity of purpose which is the characteristic of the artistic temperament is in itself a mode of limitation. To those who are preoccupied with the beauty of form nothing else seems of much importance.
There were times when it appeared to Dorian Gray that the whole of history was merely the record of his own life, not as he had lived it in act and circumstand, but as his imagination had created it for him, as it had been in his brain and in his passions. He felt that he had known them all, those strange terrible figures that had passed across the stage of the world and made sin so marvellous, and evil so full of subtlety. It seemed to him that in some mysterious way their lives had been his own.
I am afraid that you have been listening to the conversation of someone older than yourself. That is always a dangerous thing to do, and if you allow it to degenerate into a habit, you will find it absolutely fatal to any intellectual development.