“It takes two flints to make a fire.”

“I come down to the water to cool my eyes. But everywhere I look I see fire; that which isn't flint is tinder, and the whole world sparks and flames.”

“The mechanical engineer today is carrying forward, under the direction of science, the work that was begun by the mechanic who first learned to chip flint or make a fire; and it is he alone that can lead the mechanic of today to a better understanding of his problems, and the capitalist to a better appreciation of their solution.”

“It takes two to make an accident.”

“It takes two people to make a friendship work”

“It is something like fire working on wood; the heat draws out all the moisture, the greenness and the heaviness. It grows warm, begins to glow, becomes more like the fire itself. As the wood slowly takes on the likeness of fire, the dissimilarity between the two grows less until finally, in a rapid movement, the fire takes from the wood its own substance; the wood becomes fire and loses at the same time its separateness and inequality, since it has become fire. No longer merely like fire, it has become one substance with the fire. Likeness is lost in union.”

“People who don't take risks generally make about two big mistakes a year. People who do take risks generally make about two big mistakes a year.”

“It may take two people to make a really beautiful mistake”

“But certain souls cohere. It's rare but possible. But it takes two powerful wills to make it so.”

“It takes two people to make you, and one people to die. That's how the world is going to end.”