If you have not even a little imagination, you are simply a brute. So you must not lower your ideal, neither are you to lose sight of practicality. We must avoid the two extremes.... You must try to combine in your life immense idealism with immense practicality.
If we want justice for minorities and cooled wars with our natural enemies, whether human or non-human, we must first come to terms with the minority and the enemy in ourselves and in our own hearts, for the rascal is there as much as anywhere in the "external" world - -especially when you realize that the world outside your skin is as much yourself as the world inside.
The key to your happiness is to own your slippers, own who you are, own how you look, own your family, own the talents you have, and own the ones you don't. If you keep saying your slippers aren't yours, then you'll die searching, you'll die bitter, always feeling you were promised more. Not only our actions, but also our omissions, become our destiny.