When a professor insists computer science is X but not Y, have compassion for his graduate students.
当教授坚持说计算机科学是X但不是Y时,请对他的研究生抱有同情心。
量子傅里叶变换是Shor算法中指数级加速的关键。
The best way to cheer yourself up is to try to cheer somebody else up.