Most people do not say what they think. And most people do not do what they say. There is something in the speaking that goes wrong. In the speaking we try to be ‘better’ persons than we are. We say things we think people want to hear and which can be very different to how we feel. How often do you say yes when you feel no?
Being aware of this can drive you crazy. But it can also make you look at yourself. We tend to go outside of ourselves because we need to fix the big problems. We do not go inward, to try and change something very small inside ourselves. Even if it is saying yes when you mean yes, and no when you mean no. Such a small thing can change the complete world around you. If you only start to believe it.