只有利他的生活才是值得过的生活。
Leadership is about making tough decisions, not just giving orders.
War doesn't negate decency. It demands it, even more than in times of peace.
人类心智是一套信息处理机制,这些机制由自然选择设计来解决我们狩猎采集祖先面临的适应性问题。
The only way to do great work is to love what you do.