It is difficult to learn well, just like a person climbing a mountain. He must have suffered a lot before he reached the top. It's easy to learn bad, just like sliding at the foot of the mountain and falling into the abyss.
Learning well is difficult, just like climbing a mountain alone. You must get to the top after suffering. It's easy to learn badly, just like falling into the abyss when your foot slips on the top of the mountain.