If you're competitor-focused, you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering.

The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths.

"Books are the bridges between different worlds."

进步的真正衡量标准不在于知识的积累，而在于其应用于人类的改善。