The mother said that would only make the child needy and overly demanding.

VOA: special.2010.05.13

The child starts off grasping the world only in a physical way, in a sensorimotor way, but when he gets to the preoperational period, the capacity to represent the world, to have the world inside your head, comes into being.

开始的时候,儿童只能通过生理的方式,通过感知运动的方式,来认识世界,但是当儿童进入了前运算阶段,他们便逐渐拥有了表征事物,在头脑中构建世界的能力

耶鲁公开课 - 心理学导论课程节选

But the only way you're ever going to get out of talking like a child is if you grow up like a child does.

但是，如果你不想像儿童那样磕磕巴巴地讲话，你就要像儿童一样，快速地成长起来，这是唯一的途径。

想学好英语吗？ - SpeakingMax英语口语达人

Maurice Sendak was only a small child at the time.

VOA: special.2009.10.05