the branches of learning (as philosophy, arts, or languages) that investigate human constructs and concerns as opposed to natural processes (as in physics or chemistry) and social relations (as in anthropology or economics)
jackhammer advice (applies to almost everything)
It's better to approach the job as many small sections rather than a few large ones.
Why, yes, I am jackhammering the slab in the back yard, and hope to get to the old sidewalk about the house, too.