The old believe everything; the middle-aged suspect everything; the young know everything.
实际发展水平与潜在发展水平之间的距离,前者由独立解决问题决定,后者由在成人指导下或与更有能力的同伴合作解决问题决定。
Sometimes it’s the journey that teaches you a lot about your destination.
技术是文化适应的关键因素,但它总是通过社会和文化机构来调节。