Knowledge without action is wastefulness and action without knowledge is foolishness.

Every day I hear stupid people say things that are not stupid.

None is a fool always, everyone sometimes.

Only a fool expects to be happy all the time.

I don't think I am heartless. Do you?''You have done too many foolish things during the last fortnight to be entitled to give yourself that name, Dorian,' answered Lord Henry with his sweet melancholy smile.

private loans will utilize existing resources and capital far better than government loans. Government loans will waste far more capital and resources than private loans. Government loans, in short, as compared with private loans, will reduce production, not increase it.

What could a fool be thinking but further foolishness?

Foolishness is more than being stupid, that deadly combination of arrogance and ignorance.

Conventional Wisdom" is certainly not wisdom, and only is conventional because foolishness is so common today.

Elizabeth remembered how foolish everyone had felt when they discovered Mr. Mercandy was the victim of a stroke and not a zombie as they’d thought.