As human beings, our greatness lies not so much in being able to remake the world - that is the myth of the atomic age - as in being able to remake ourselves.
Difficulties come when you don't pay attention to life's whisper. Life always whispers to you first, but if you ignore the whisper, sooner or later you'll get a scream
Watch your thoughts for they become words. Watch your words for they become actions. Watch your actions for they become habits. Watch your habits for they become your character. And watch your character for it becomes your destiny. What we think, we become. My father always said that... and I think I am fine.
What is important is not the length of life, but the depth of life. What is important is not to make life longer, but to take your soul out of time, as every sublime act does.