The Kingdom of God is Within You by Leo Tolstoy Chapter 5 Page 20

They know that they are in slavery and condemned to privation and darkness to minister to the lusts of the minority who keep them down.

They know it, and they say so plainly. And this knowledge increases their sufferings and constitutes its bitterest sting.

The slave of antiquity knew that he was a slave by nature, but our laborer, while he feels he is a slave, knows that he ought not to be, and so he tastes the agony of Tantalus, forever desiring and never gaining what might and ought to be his.

The sufferings of the working classes, springing from the contradiction between what is and what ought to be, are increased tenfold by the envy and hatred engendered by their consciousness of it.

The laborer of the present day