It is true that the grasping of truth is not possible without empirical basis. However, the deeper we penetrate and the more extensive and embracing our theories become the less empirical knowledge is needed to determine those theories.
Pause you who read this, and think for a moment of the long chain of iron or gold, of thorns or flowers, that would never have bound you, but for the formation of the first link on one memorable day.
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.