Fear of change stifles progress; understanding change directs it.
债券市场是世界上最聪明的市场。
Sustainability is not a trend; it's a responsibility we owe to future generations.
过去是你所记得的,想象你记得的,说服自己记得的,或假装记得的。
I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.