I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

I never did a day's work in my life, it was all fun.

When you become quiet, it just dawns on you

Nothing that's good works by itself, you've got to make the damn thing work.

There is no substitute for hard work.

My principal business is giving commercial value to the brilliant - but misdirected - ideas of others.

I would rather have one man with enthusiasm working with me than ten who are complacent.