货币联盟不仅仅是经济问题，还涉及政治以及各国为更大稳定性而放弃部分主权的意愿。

I never cut class. I loved getting A’s, I liked being smart. I liked being on time. I thought being smart is cooler than anything in the world.

The meat industry must evolve to meet the demands of the next generation.

The discovery of quantum algorithms has fundamentally changed our understanding of computational complexity.

反过来，始终反过来：把情况或问题颠倒过来，从反面看。

If you want to go fast, go alone. If you want to go far, go together.

The beauty of mathematics only shows itself to more patient followers.