Providence watches over each of us as we journey through life, providing us with two guides: repentance and remorse. The one calls us forward. The other calls us back. Yet they do not contradict each other, nor do they leave the traveler in doubt or confusion. For the one calls forward to the Good, the other back from the evil. And there are two of them, because in order to make our journey secure we must look ahead as well as back.

Søren Kierkegaard