I don't believe in frontiers, and I don't believe in races or nationalities.

Love of one's country recognizes no frontiers... of other countries.
topic: Country, Frontiers, Other Countries
The frontier of America is on the Rhine.
source: "The United States in World Affairs" by Whitney H. Shepardson, p. 104, 1940.
There is no frontier between being and appearing.
source: Albert Camus (2012). “The Myth of Sisyphus: And Other Essays”, p.117, Vintage
topic: Men, Opening Up, Frontiers
I would like to bury myself in an Indian village, preferably in a Frontier village.
source: Mahatma Gandhi (1974). “Collected Works”
The frontier between public and private shifts from time to time and culture to culture.
source: "Leveson inquiry: the frontiers of privacy" by Terry Eagleton, www.theguardian.com. November 28, 2011.
The new frontiers to be conquered are mainly in the convolutions of the cortex.
topic: New Frontiers, Frontiers
A frontier is never a place; it is a time and a way of life.
source: Hal Borland (1970). “Country editor's boy”, Lippincott Williams & Wilkins
Midnight! the outpost of advancing day! The frontier town and citadel of night!
source: Henry Wadsworth Longfellow (2013). “Delphi Complete Works of Henry Wadsworth Longfellow (Illustrated)”, p.1005, Delphi Classics
When you're advancing a frontier it stimulates creativity to find solutions.
source: "Dr. Neil deGrasse Tyson on Writing, Mars, Curiosity, and the Higgs Boson". Interview With Sandra Kitt, aalbc.com. January 1, 2013.
topic: Creativity, Frontiers, Solutions