A esperança é a última que morre, mas é a primeira a renascer.
对于手中紧急待办的事情，千万不要急躁，而应沉下心，详慎周密地思考斟酌，对于已经考虑成熟的问题，千万不要延缓，而应横下心，果决神速地实施解决。
在数学中，提出问题的艺术必须比解决问题更有价值。
Data tells you what's happening, but only intuition can tell you why.
The fact remains that getting people right is not what living is all about anyway. It’s getting them wrong that is living, getting them wrong and wrong and wrong and then, on careful reconsideration, getting them wrong again.