The answer to life, the universe and everything.

- We must know it! Now!
- Now? -inquired Deep Thought.
- Yes! Now...
- Alright -said the computer and settled into the silence again. The two men fidgeted. The tension was unbearable.
- You're really not going to like it -observed Deep Thought.
- Tell us!
- Alright, -said Deep Thought- the Answer to the Great Question ...
- Yes!
- Of Life, the Universe and Everything...-said Deep Thought.
- Yes...!
- Is...-said Deep Thought and paused.
- Yes...!
- Is...
- Yes...!!!...?
- Forty two -said Deep Thought, with infinite majesty and calm.

The Hitchhikers's Guide to the Galaxy, Douglas Adams.