The second key distinction is between praxeology and history, which Mises considers the two ur-sciences of human action (Mises [1949] 1996, 30–32); praxeology studies the theoretical and necessary characteristics of action, while history studies its contingent characteristics and manifestations.

I sucked in my belly, hoping to hide the extra weight I had put on over the holidays.

The car was so low to the ground that its muffler was dragging on a speed bump.

Imagine God in Heaven surrounded by the choirs of adoring angels singing hosannahs unendingly.