"If he has a conscience he will suffer for his mistake" refers to a murderer in this 1866 novel
... (minus the murder, of 
course) ... Barnes & Noble Classics Book Covers Designed by Jessica Hirsche 
...... white, life puts us to the test, sometimes we choose the dark side, but it does 
not define us as human beings ..... Fyodor Dostoyevsky - Crime and Punishment (
1866).