(SPEAKING) The university president says if anyone tried to eliminate freedom of speech, which Ukrainians enjoy on news programs and talk shows, he would have very big problems.

VOA: standard.2010.03.17

Skinner, in his book Verbal Behavior, talks about the question of why do we do things like talk to ourselves, imitate sounds, create art, give bad news to an enemy, fantasize about pleasant situations?

斯金纳在其《言语行为》一书中，描述了我们展现各种行为的原因,如自言自语，声音模仿，创造艺术，向敌人散布坏消息，幻想美好情景等等？

耶鲁公开课 - 心理学导论课程节选