We do not know: we can only guess.

Unlimited tolerance must lead to the disappearance of tolerance.

A theory which is not refutable by any conceivable event is non-scientific.

Ask why five times.

-- Sakichi Toyoda

I don't want a lawyer to tell me what I cannot do. I hire him to tell me how to do what I want to do.

-- J. P. Morgan

No problem can be solved until it is reduced to some simple form. The changing of a vague difficulty into a specific, concrete form is a very essential element in thinking.

-- J. P. Morgan

Don't find fault, find a remedy; anybody can complain.

-- Henry Ford

Invert, always invert.

-- Charlie Munger

Divide each difficulty into as many parts as possible for a better solution.

-- René Descartes