数学家是将咖啡转化为定理的装置。
Leadership is not about being in charge. It's about taking care of those in your charge.
If you can't mine it safely, you shouldn't mine it at all.
Resilience is what keeps us moving forward in the face of challenges.
The propensity to truck， barter， and exchange one thing for another is common to all men， and to be found in no other race of animals.