All that we see or seem is but a dream within a dream.

农民是我们全球食品系统中无名的英雄。

Patriotism is not a choice, but a duty.

我想一个平常人完全可以选择不平常。

The only way to change behavior is through manipulation of reinforcement contingencies.

在家不会接待客人，出去后才知道这个问题的重要性。

All the choir of heaven and furniture of earth - in a word， all those bodies which compose the frame of the world - have not any subsistence without a mind.

在文学中，我们找到了自己生活的回响，反映在他人的生活中。

"The world is full of stories, but the stories are all one."

饥饿和贫困是世界上许多动荡和苦难的根本原因。