If everything was perfect, you would never learn and you would never grow.
The most important thing is to enjoy your life—to be happy—it's all that matters.
爱不像石头一样静止不动;它必须像面包一样被制作,不断重新制作,不断更新。
分析和代数之间的相互作用是数论中许多突破的驱动力。