Patience is bitter， but its fruit is sweet.

The balance between energy needs and environmental protection is the challenge of our time.

The only limit to our realization of tomorrow will be our doubts of today.

"El arte de escribir es el arte de descubrir lo que crees."

Quality is not an end in itself; it is a means to an end.

There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies.