in for a penny in for a pound ; don't be stingy over small things when doing something big ; once you commit to a big task do not quibble over minor costs
use excessive means to accomplish a trivial task ; overkill for a small problem ; use disproportionate resources for a minor objective ; break a butterfly on the wheel
to persevere until success ; to accomplish something through persistent effort ; to persist patiently until a difficult task is completed ; to achieve a goal through determination and hard work
operational autonomy ; autonomy in operations ; the ability of an organization, unit, or individual to operate and make decisions independently in carrying out tasks or activities
