A happy person is not a person in a certain set of circumstances, but rather a person with a certain set of attitudes.
快乐的人不是处于某种特定环境的人,而是具有某种特定态度的人。
80% of life's most defining moments take place by age 35.
I always knew I wanted to be a singer, and I never let anybody tell me I couldn't.
经济学的研究最终是对人类行为及其后果的研究。
为了对抗永恒的不公,人类必须伸张正义,为了对抗宇宙的悲伤,人类必须创造幸福。