There are rules for learning the art: (1) Think of what is right and true; (2) Practice and cultivate the science; (3) Become acquainted with the arts; (4) Know the principles of the crafts; (5) Understand the harm and benefit in everything; (6) Learn to see everything accurately; (7) Become aware of what is not obvious; (8) Be careful even in small matters; (9) Do not do anything useless.

There's no excuse. They were, after all, rocket scientists.

Beware of the above code. I have only proven it correct, not tested it.

I have never stopped being occupied with technical matters. This has also been advantageous for scientific research.

I am tired of this thing called science ... We have spent millions on that sort of thing for the last few years, and it is time it should be stopped.

The soul can never be cut into pieces by any weapon, nor can it be burned by fire, nor moistened by water, nor withered by the wind. This individual soul is unbreakable and insoluble, and can be neither burned nor dried. It is everlasting, all-pervading, unchangeable, immovable, and eternally the same.

Men are like a fine wine. They all start out like grapes, and it's our job to stomp on them and keep them in the dark until they mature into something you'd like to have dinner with.

Die Lieb' versüßet jede Plage, Ihr opfert jede Kreatur.
Sie würzet unsre Lebenstage, Sie wirkt im Kreise der Natur.
Ihr hoher Zweck zeigt deutlich an: Nichts edlers sei als Weib und Mann.
Mann und Weib, und Weib und Mann, Reichen an die Gottheit an.

Instead of getting married again, I'm going to find a woman I don't like and just give her a house.

Vorrei e non vorrei, Mi trema un poco il cor.
Felice, è ver, sarei, Ma può burlarmi ancor.

The general who wins a battle makes many calculations in his temple before the battle is fought. The general who loses a battle makes but few calculations beforehand. Thus do many calculations lead to victory, and few calculations lead to defeat; how much more no calculation at all!

Knowledge is the source of my success
History is the course and life's the test
For those who don't know, history's repetitive
Lack of knowledge serves as a sedative

In my generation we weren't burdened by this inferiority complex with the other sciences -- that just wasn't a problem for us. We were inventing things that had never been invented before, we were transforming the world, and that was good enough for me.

It is lucky for all of us that Intel's iAPX 432 processor project never made it back in the early eighties. Otherwise a really horrible Intel architecture might have taken over the world. Whew!

"To find the way out of a labyrinth," William recited, "there is only one means. At every new junction, never seen before, the path will be marked with three signs. If, because of previous signs on some of the paths of the junction, you see that the junction has already been visited, you will make only one mark on the path you have taken. If all the apertures have already been marked, then you must retrace your steps. But if one or two apertures of the junction are still without signs, you will choose any one, making two signs on it. Proceeding through an aperture that bears only one sign, you will make two more, so that now the aperture bears three. All the parts of the labyrinth must have been visited if, arriving at a junction, you never take a path with three signs, unless none of the other passages is now without signs."