“If you're going through hell, keep going.”
— Winston Churchill
Attributed to Churchill during WWII. Widely popularized as his saying, though no direct documented source exists in his speeches or writings.
In May 1940, I took office as Britain burned and Europe fell. I had nothing to offer but blood, toil, tears and sweat. Some nights I sat alone, cigar gone cold, wondering if I'd led my country into ruin. But I learned this: the worst place to stop is in the middle of the fire. Whatever is burning around you right now, don't sit down in it. Keep walking.