leave the matter as it is; chance the consequence; concede to the nature of things; laissez-faire; leave (things) to chance; leave matters to develop themselves; let it go at that; Let nature take its own course.; let things go hang; let things rip; let things slide; let things [matters] take their (own) course; Let things take their natural course.; let the world wag (as it will); take the world as it is [as one finds it]