经济学家正确地预测了过去五次衰退中的九次。

Technological innovation without user thinking is just self-indulgence.

Darkness cannot drive out darkness； only light can do that.Hate cannot drive out hate； only love can do that.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

创新不仅仅是技术的问题；它关乎改变思维方式，拥抱新的思考模式。