We don't inherit the ocean from our ancestors; we borrow it from our children.
"La literatura es una forma de resistencia, una manera de decir no al olvido."
Time is not a thing, thus we can neither waste nor save it; it is always with us.  
技术可以改变世界,但价值观才能决定改变的方向。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.