The subject matter is autobiographical, it's all to do with hope and memory and sensuality and involvement, really.

For the best results with your children， spend only half the money you think you should， but double the time with them.

Cada libro es un mundo por descubrir, lleno de sorpresas y enseñanzas.

Anything you say before the word “but” does not count.

The future of computing lies in the development of systems that can verify their own correctness.