The biggest challenge isn't the science - it's changing people's perceptions.
The secret of a happy old age is to have a good memory and a bad one.
对认可的渴望,灵魂中的激情部分,是人性中最具政治危险性的部分。
世界上最好和最美丽的东西是看不见甚至摸不到的 - 它们必须用心去感受。
The essence of mathematics lies in its freedom.