That frontier operated as a rough and ready homeostatic device; the more a state pressed its subjects, the fewer subjects it had. The frontier underwrote popular freedom. - James C. Scott
Telescopes and bathyscapes and sonar probes of Scottish lakes, Tacoma Narrows bridge collapse explained with abstract phase-space maps, some x-ray slides, a music score, Minard's Napoleonic war: the most exciting new frontier is charting what's already here. - Randall Munroe
The fledgling and ragtag American army turned its state into a semi-plausible advantage, encouraging enlistees to wear their own "hunting shirts" to build on the reputation of frontier marksmen. - Joseph J. Ellis
In our family histories, the frontier between fact and fiction is vague, especially in the record of events that took place before we were born, or when we were too young to record them accurately; there are few maps to these remote regions, and only the occasional sign to guide the explorer. - Adam Sisman
Where there is an open mind there will always be a frontier. - Charles F. Kettering
An artist is a provincial who finds himself somewhere between a physical reality and a metaphysical one. It’s this in-between that I’m calling a province, this frontier country between the tangible world and the intangible one. That is the realm of the artist. - Federico Fellini
Every daring adventure opens a new magnificent frontier. - Debasish Mridha
The creation of a line of forts opposite to the French frontier will enable the German troops to be economized on that line and will enable the main forces to swing round through Belgium and Holland.
Where the frontier of science once was is now the centre. - Georg Christoph Lichtenberg
Some thirty inches from my noseThe frontier of my Person goes,And all the untilled air betweenIs private pagus or demesne.Stranger, unless with bedroom eyesI beckon you to fraternize,Beware of rudely crossing it:I have no gun, but I can spit. - W.H. Auden