People have locks to their house doors but they don't have locks to their minds. Any burglar can come in and plant, not steal ideas, and then people think, hey

People have locks to their house doors but they don't have locks to their minds. Any burglar can come in and plant, not steal ideas, and then people think, hey.. this is my idea, it's in my mind. Critical thinking, this is the antidote. Protect your mind with critical thinking, and don't let any idea enter unscrutinized. It's better to dismiss it then let it enter unscrutinized. But don't dismiss everything, or you'll develop confirmation bias. Put in the effort to reflect on/research some of them..