Here is the classic experiment by Festinger.

下面是▁Festinger▁的经典实验。

Festinger's theory begins with the notion that we experience discomfort - or dissonance - when our thoughts, beliefs, or behaviors are inconsistent with each other.

费斯廷格的理论始于这样一种观念，即当我们的思想、信念或行为彼此不一致时，我们会感到不适或失调。