The only way to discover the limits of the possible is to go beyond them into the impossible.
不是有没有时间的问题,而是愿不愿意挤出时间的问题。
证明的严谨性将数学与所有其他科学区分开来。
Success is my only option, failure's not.
专业人士其实就是能更优雅的从错误从回到正常状态的业余人士。
Fear can hold you prisoner, hope can set you free.