When is it wrong to sit quietly

Quakers have an intimate relationship to Truth and are guided to speak truth as they know it and to be open to truth from whatever source it comes.

The Quaker testimony against taking oaths grew out of the intention to speak truth always and not only when one’s hand is on the Bible. Thus Quakers will affirm to telling the truth in lieu of taking a judicial oath.

Although Quakers eschew speaking about partisan politics during their quiet meetings, there are political sides drawn not along party lines but along the morality of speaking Truth.

Is it right to sit idly by when truth is perverted? Is there not a moral imperative to speak truth and banish falsehoods?