The Internet is a living, evolving entity that requires constant attention and care.
互联网是一个不断发展的实体，需要持续的关注和照顾。
The wall is the oldest and most revolutionary architectural element.
The course of development consists simply in this; that in each generation the two parental traits appear, separated and unchanged.
The doorway to happiness opens from the inside.
One must not always think that feeling is everything. Art is nothing without form.
解析：心是身体的主宰，意是心的发用。
我想我是不敢开心了，因为每次都会乐极生悲。