Have we not come to such an impasse in the modern world that we must love our enemies - or else? The chain reaction of evil - hate begetting hate, wars producing more wars - must be broken, or else we shall be plunged into the dark abyss of annihilation.
Martin Luther King, Jr.

These are not dark days: these are great days - the greatest days our country has ever lived.
Winston Churchill

If the whole universe has no meaning, we should never have found out that it has no meaning: just as, if there were no light in the universe and therefore no creatures with eyes, we should never know it was dark. Dark would be without meaning.
C. S. Lewis

Weather forecast for tonight: dark.
George Carlin

I'm so fast that last night I turned off the light switch in my hotel room and was in bed before the room was dark.
Muhammad Ali

A rooster crows only when it sees the light. Put him in the dark and he'll never crow. I have seen the light and I'm crowing.
Muhammad Ali

When it is dark enough, you can see the stars.
Ralph Waldo Emerson

Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.
Groucho Marx

My wife was afraid of the dark... then she saw me naked and now she's afraid of the light.
Rodney Dangerfield

We must walk consciously only part way toward our goal, and then leap in the dark to our success.
Henry David Thoreau

I put a piece of paper under my pillow, and when I could not sleep I wrote in the dark.
Henry David Thoreau

The woods are lovely, dark and deep. But I have promises to keep, and miles to go before I sleep.
Robert Frost

My sorrow, when she's here with me, thinks these dark days of autumn rain are beautiful as days can be; she loves the bare, the withered tree; she walks the sodden pasture lane.
Robert Frost

Walking with a friend in the dark is better than walking alone in the light.
Helen Keller

I can see, and that is why I can be happy, in what you call the dark, but which to me is golden. I can see a God-made world, not a manmade world.
Helen Keller

The marvelous richness of human experience would lose something of rewarding joy if there were no limitations to overcome. The hilltop hour would not be half so wonderful if there were no dark valleys to traverse.
Helen Keller

We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.
Plato

I have no dress except the one I wear every day. If you are going to be kind enough to give me one, please let it be practical and dark so that I can put it on afterwards to go to the laboratory.
Marie Curie

We all walk in the dark and each of us must learn to turn on his or her own light.
Earl Nightingale

What, but the rapacity of the only men who exercised their reason, the priests, secured such vast property to the church, when a man gave his perishable substance to save himself from the dark torments of purgatory.
Mary Wollstonecraft