Most great leaders are also great communicators. Great leaders have learned how to persuade so their objectives can be reached. The most powerful device to persuade is story. Stating facts and figures is not memorable. Emotionally connecting your audience to your idea through story will move them.
By an epiphany he meant a sudden spiritual manifestation, whether in the vulgarity of speech or of gesture or memorable phrase of the mind itself. He believed it was for the man of letters to record these epiphanies with extreme care (saving them for later use, that is), seeing that they themselves are the most delicate and evanescent of moments.