The imagination of the genius vastly surpasses his intellect; the intellect of the academic vastly surpasses his imagination

Scientists may be in the business of laughing at their predecessors, but owing to an array of human mental dispositions, few realize that someone will laugh at their beliefs in the (disappointingly near) future.

Don't ask the barber whether you need a haircut, and don't ask an academic if what he does is relevant.

You have family-owned businesses that have been around for 500 years. You cannot name a corporation that survives intact for even a few decades.

Make sure that you are in a situation where the constant mistakes are small and can be used for something.

Half of the people lie with their lips; the other half with their tears

The rationalist imagines an imbecile-free society; the empiricist and imbecile-proof one, or even better, a rationalist-proof one.