If you are free, you are not predictable.
Don't get involved in partial problems, but always take flight to where there is a free view over the whole single great problem, even if this view is still not a clear one.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
领导者的愿景必须足够清晰以提供指导，但又足够灵活以进行调整。
The sea has never been friendly to man. At most it has been the accomplice of human restlessness.