Escribir es una forma de resistencia contra el olvido.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
实现不可能的唯一方法是相信它是可能的。
The most reliable way to forecast the future is to understand the present.
The greatest wisdom is to know that you know nothing.
学习数学的最好方法就是做数学。