You have not converted a man...

You have not converted a man because you have silenced him.

--John Morley

Silence is one of the hardest...

Silence is one of the hardest arguments to refute.

--Josh Billings

Throughout history, it has been...

Throughout history, it has been the inaction of those who could have acted; the indifference of those who should have known better; the silence of the voice of justice when it mattered most; that has made it possible for evil to triumph.

--Haile Selassie