A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.
— John Stuart Mill
The Fate of good men who refuse to become involved in politics is to be ruled by evil men.
— Edmund Burke
Evil triumphs when good men do nothing.
— Thomas Jefferson
Success has a great tendency to conceal and throw a veil over the evil deeds of men.
— Demosthenes
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
He who does not bellow the truth when he knows the truth makes himself the accomplice of liars and forgers.
— Charles Peguy
Justice will not be served until those who are unaffected are as outraged as those who are.
— Benjamin Franklin
If you are neutral in situations of injustice, you have chosen the side of the oppressor.