As a candidate, Donald Trump used a nifty slogan—”Make America Great Again”—to connect the different themes of his agenda. Approaching the end of his first year in office, he needs another slogan to focus on important goals while avoiding destructive distractions.

Perhaps we need a sign on the president’s desk, citing the old Arab proverb: “The dogs bark, but the caravan moves on.” Of course, President Trump receives plenty of vicious criticism, some of it undeserved. But our most successful presidents avoided striking back at such cheap shots, preferring to answer unfair criticism with undeniable achievements.

Imagine, for instance, how much damage could have been avoided had the president simply ignored the showboating Congresswoman who complained over his private call to a grieving war widow.

Churchill penned his own version of the Middle Eastern saying the president should take to heart. He declared: “You will never reach your destination if you stop and throw stones at every dog that barks.”