Little Axe's records are wracked with collective grief. Spectral harmonicas resemble howling wolves; echoes linger like wounds that will never heal; the voices of the living harmonise with the voices of the dead in songs thick with reproach, recrimination and the hunger for redemption.

In the era of Donald Trump the echoes of Westboro are undeniable: the division of the world into Us and Them; the vilification of compromise; the knee-jerk expulsion of insiders who violate group orthodoxy; and the demonization of outsiders and the inability to substantively engage with their ideas, because we simply cannot step outside of our own.

If the universe sprung into existence and then expanded exponentially, you get gravitational waves traveling through space-time. These would fill the universe, a pattern of echoes of the inflation itself.

Education is a state-controlled manufactory of echoes.

I'm hearing echoes of Bill Clinton, circa 1996, in President Obama's reelection rhetoric.

Marriage has a unique place because it speaks of an absolute faithfulness, a covenant between radically different persons, male and female; and so it echoes the absolute covenant of God with his chosen, a covenant between radically different partners.