It was owing to this custom that, one day in June, about mid-day, a telegraph clerk, Caroline Meslier, came and sat down on a bench at the end of a terrace.  In order to refresh her eyes by the sight of a little green, she turned her back to the town.  Dark, with brown eyes, robust and placid, Caroline appeared to be from twenty-five to twenty-eight years of age.  Almost immediately, a clerk in the Electricity Trust, George Clair, took his place beside her.  Fair, thin, and supple, he had features of a feminine delicacy; he was scarcely older than she, and looked still younger.  As they met almost every day in this place, a comradeship had sprung up between them, and they enjoyed chatting together.  But their conversation had never been tender, affectionate, or even intimate.  Caroline, although it had happened to her in the past to repent of her confidence, might perhaps have been less reserved had not George Clair always shown himself extremely restrained in his expressions and behaviour.  He always gave a purely intellectual character to the conversation, keeping it within the realm of general ideas, and, moreover, expressing himself on all subjects with the greatest freedom.  He spoke frequently of the organization of society, and the conditions of labour.

“Wealth,” said he, “is one of the means of living happily; but people have made it the sole end of existence.”

And this state of things seemed monstrous to both of them.

They returned continually to various scientific subjects with which they were both familiar.

On that day they discussed the evolution of chemistry.

“From the moment,” said Clair, “that radium was seen to be transformed into helium, people ceased to affirm the immutability of simple bodies; in this way all those old laws about simple relations and about the indestructibility of matter were abolished.”

“However,” said she, “chemical laws exist.”

For, being a woman, she had need of belief.

He resumed carelessly: 

“Now that we can procure radium in sufficient quantities, science possesses incomparable means of analysis; even at present we get glimpses, within what are called simple bodies, of extremely diversified complex ones, and we discover energies in matter which seem to increase even by reason of its tenuity.”

As they talked, they threw bits of bread to the birds, and some children played around them.

Passing from one subject to another: 

“This hill, in the quaternary epoch,” said Clair, “was inhabited by wild horses.  Last year, as they were tunnelling for the water mains, they found a layer of the bones of primeval horses.”

She was anxious to know whether, at that distant epoch, man had yet appeared.

He told her that man used to hunt the primeval horse long before he tried to domesticate him.

“Man,” he added, “was at first a hunter, then he became a shepherd, a cultivator, a manufacturer . . . and these diverse civilizations succeeded each other at intervals of time that the mind cannot conceive.”