Never underestimate the power of perseverance.
La literatura es el arte de la palabra, y la palabra es el arte de la literatura.
伟大的设计是永恒的，但也必须与时俱进。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.