"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."

Do not let your fire go out, spark by irreplaceable spark.

The young do not know enough to be prudent, and therefore they attempt the impossible – and achieve it, generation after generation.

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

永远不要在亚洲陷入地面战争。