"La triste verdad es que la mayor parte del mal es hecho por personas que nunca deciden ser buenas o malas."

Simplified Meaning:

Many harmful actions in the world happen because people do not decide whether they want to be good or bad. Instead, they just follow along with what others are doing or fail to think about the consequences of their actions. For instance, in history, many people followed leaders who were doing wrong things, not because they wanted to do harm, but because they didn’t stop to think about what they were actually doing. They didn’t actively choose to be good and just went with the flow. Think of it like a group of kids playing a game. If one child starts breaking the rules and being mean, and the others just go along with it without thinking, they all end up causing trouble. It’s not that they set out to be bad, but by not choosing to do the right thing, bad things happen. To apply this in life, make conscious choices about your actions. Decide to do good intentionally, not just follow others or act without thinking. This way, you contribute positively rather than unintentionally doing harm.