Regular meditation practice leads us to see that thoughts are absolutely harmless. Here are a couple of quotes that point to this truth.
It is your thoughts alone that cause you pain. Nothing external to your mind can hurt or injure you in any way. There is no cause beyond yourself that can reach down and bring oppression. (Course in Miracles lesson 190)
Any good that befalls you is from God, and any bad that befalls you is from yourself. (Quran 4:79)
see?
bob