想象力是一块肌肉。如果不锻炼,它就会萎缩。
The market is a voting machine in the short term and a weighing machine in the long term.
"We have to be willing to fail, to be wrong, to start over with lessons learned."
我已经履行了我的职责。我证明了庞加莱猜想,我在数学上没有什么可做的了。