Blood and Iron

"Germany is not looking to Prussia's liberalism, but to its power. . . . [I]t is not by speeches and majority resolutions that the great questions of the time are decided -- that was the big mistake of 1848 and 1849 -- but by iron and blood."
What does this quote suggest about Bismarck’s ideas on politics?
He believed that decisions should be made on a moral basis.
He believed that decisions should be made by the people.
He believed that decisions should be made with practicality and force.
He believed that decisions should be made based on theory.