心理学的方法必须严格经验化。
睡眠,那些小小的死亡切片——我多么厌恶它们。
The best books are those that challenge you.
For the past 33 years, I have looked in the mirror every morning and asked myself: 'If today were the last day of my life, would I want to do what I am about to do today?' And whenever the answer has been 'No' for too many days in a row, I know I need to change something.