Because we have sought to cover up past evil, though it still persists, we have been powerless to check the new evil of today. Evil unchecked grows, … - Jawaharlal Nehru

Evil unchecked grows, evil tolerated poisons the whole system.

..And yet wrong
steps have to be taken sometimes lest some worse peril befall
us; that is the great paradox of politics, and no man can say
with surety whether present wrong-doing is better and safer in
the end than the possibility of that imagined peril.

Without that passion and urge, there is a gradual oozing out of hope and vitality, a settling down on lower levels of existence, a slow merging into non-existence. We become prisoners of the past and some part of its immobility sticks to us.

Long years ago, we made a tryst with destiny, and now the time comes when we shall redeem our pledge, not wholly or in full measure, but very substantially. At the stroke of the midnight hour, when the world sleeps, India will awake to life and freedom. A moment comes, which comes but rarely in history, when we step out from the old to the new, when an age ends, and when the soul of a nation, long suppressed, finds utterance