There is one quote that I think of almost daily. It is attributed to the Austrian zoologist Konrad Lorenz (1903 – 1989) who, based on these great lines, might have made a pretty good project manager as well…

What is thought is not yet said,
what is said is not properly heard,
what is heard is not properly understood,
what is understood is not always accepted,
what is accepted is not always applied,
what is applied is not always kept.