爱就是冒着不被爱的风险。希望就是冒着痛苦的风险。尝试就是冒着失败的风险，但必须承担风险，因为人生最大的危险就是什么都不冒险。
"To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risk must be taken because the greatest hazard in life is to risk nothing."
Inquiry into reality begins with the recognition of our ignorance.
我对事物的外观不如对它们的意义感兴趣。
关于化石燃料的讨论常常缺乏细微差别——我们必须承认它们的历史作用和超越它们的紧迫性。