There is a pernicious culture of excellence: everything has to be not merely good but the best.对于优秀存在着一种认识的误区：一切都务求最好。Don't fall into the trap of feeling guilty.不要陷入自责的误区。Don't fall into the trap of believing that technology can solve all our problems.别陷入误区，以为技术能解决我们所有的问题。