I want to take a step further and say that it's the character of the individual, the bravery of the one who's willing to shut out the outer world in pursuit of

I want to take a step further and say that it's the character of the individual, the bravery of the one who's willing to shut out the outer world in pursuit of what's intrinsically valuable to the inner world. It's those who are critical that live at the mercy of the criticisms of others, and those will never be able to live the lives that'll fulfill them. This way of phrasing helped me understand more emotionally.