http://www.washingtonexaminer.com/trumps.../2617643#!

Gives several examples of the philosophy-the federal government shouldn't have mission creep. On one example, it talks about funding basic research on energy and not going beyond that.

The White House's budget covers hundreds of federal agencies and $3 trillion in spending, so there is plenty in there to like and dislike.

Most budget commentary criticizes or praises this cut or that hike, or defends or assails this agency or that program. This sort of Beltway budget banter is all well and good, even though the details are likely to change dramatically before a budget resolution is passed.
But President Trump's blueprint tells a more important story to the close reader. The bigger question isn't what agency needs how much money. It's not even about efficiency.

The bigger question is this: Which activities are properly performed by the federal government, and which activities are properly left to other bodies, such as states, local governments, the private sector or nonprofit organizations?...