学习数学的最好方法就是做数学。
Most people are afraid of change，but if you look at it as something you can count on，then it can be a comfort.There's not many things you can really count on.
When Henry Ford made cheap， reliable cars people said， ‘Nah， what’s wrong with a horse？’ That was a huge bet he made， and it worked.
We believe that sustainable development is the key to a better future.
If your opinions on one subject can be predicted from your opinions on another， you may be in the grip of an ideology. When you truly think for yourself your conclusions will not be predictable.
Stay hungry, stay foolish.
We're all in this together, that's the message.
The hardest single part of building a software system is deciding precisely what to build.