The differences among mankind are of two sorts: one is a difference of station, and this difference is not blameworthy. The other is a difference of faith and assurance; the loss of these is blameworthy, for then the soul is overwhelmed by his desires and passions, which deprive him of these blessings and prevent him from feeling the power of attraction of the love of God. Though that man is praiseworthy and acceptable in his station, yet as he is deprived of the perfections of that degree, he will become a source of imperfections, for which he is held responsible. --Abdu'l-Baha