“People know what they do; frequently they know why they do what they do; but what they don't know is what what they do does.”
“People know what they do; they frequently know why they do what they do; but what they don’t know is what what they do does.”
“Humble people know their limitations: they know what they know, and they know what they do not know; they know what they can do or be, and they know what they cannot do or be”
“Then why do you want to know?""Because learning does not consist only of knowing what we must or we can do, but also of knowing what we could do and perhaps should not do.”
“It is really amazing what people can do. Only they don't know what they can do.”
“Why is it that what we do know can save us, but what we don't know can kill us?”