I build engines and attach wheels to them.

Aerodynamics are for people who can't build engines.

The client is not always right.

It's true that I have never met any man whom I thought altogether resembled me - but only because my faults are so enormous.

One must keep working continuously; otherwise, one thinks of death.

But each time I seemed to be climbing into a roller coaster and finding myself coming through the downhill run with that sort of dazed feeling that we all know.