I won't get into definitions of what torture is but it would cause somebody tremendous pain and anguish to keep them from sleeping.

我就不解释什么是施刑了,如果不让人睡觉的话,会给人造成巨大的痛苦。

耶鲁公开课 - 心理学导论课程节选

You don't need your brain for newborn sucking, limb flexation in withdrawal from pain.

新生儿吸吮乳汁无需大脑的参与,疼痛时的四肢回缩无需大脑参与

耶鲁公开课 - 心理学导论课程节选

Do you want to run away from pleasure-- run away from pain?

你想逃避愉悦吗？想逃避痛苦吗？

哈佛公开课 - 幸福课课程节选

Which of these branches that are available to me, the branches of my life story, which is the one in which the future from here on out ?" holds more pleasure and holds less pain?"

我能得到哪些分支，我的人生故事的分支，从这里起步的哪一种未来,有更多快乐更少痛苦“

耶鲁公开课 - 死亡课程节选