A motorcycle functions entirely in accordance with the laws of reason, and a study of the art of motorcycle maintenance is really a miniature study of the art of rationality itself. – Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance
Writing the first 90 percent of a computer program takes 90 percent of the time. The remaining ten percent also takes 90 percent of the time and the final touches also take 90 percent of the time. – N.J. Rubenking