For the friendship of two, the patience of one is required.
— Proverbs

Always do more than is required of you.
George S. Patton required quote

To whom much is given is much required. Luke 12:49
— Bible

It is not enough that we do our best; sometimes we must do what is required.
— Winston Churchill

Do anything, even the impossible; it may only take a little longer when a miracle is required.
— required quotation by Unknown