It’s remarkable that men should be so arrogant and secure when there are so many, indeed countless, evidences around us to suggest that we ought to be humble. The hour of our death is uncertain. The grain on which we live is not in our hands. Neither the sun nor the air, on which our life depends, lies in our power, and we have no control over our sleeping and waking. I shall say nothing of spiritual things, such as private and public sins which press upon us. Yet our hearts are as hard as steel and pay no attention to such evidence – Martin Luther, 1483-1546
