Hardest to Grow

“Professor, what is the hardest thing in the world?” At the question, I turned around curiously, wanting to hear the answer. At some point, rain had begun to fall outside the car, speckling the window like fine hairs and turning it a hazy white. In moments, the view outside had blurred. Professor Gu smiled, looking remarkably at ease. “Of all things in this world, the hardest is making them last. Things are like that, feelings are like that, even life itself...”