Victor Hugo

“ Marius went away confident, and Cosette uneasy. From that day forth, they adored each other.
The first thing that Cosette felt was a confused and profound melancholy. It seemed to her that her soul had become black since the day before. She no longer recognized it. The whiteness of soul in young girls, which is composed of coldness and gayety, resembles snow. It melts in love, which is its sun. ”

“ One hardly dares to say, nowadays, that two beings fell in love because they looked at each other. That is the way people do fall in love, nevertheless, and the only way. The rest is nothing, but the rest comes afterwards. Nothing is more real than these great shocks which two souls convey to each other by the exchange of that spark.
At that particular hour when Cosette unconsciously darted that glance which troubled Marius, Marius had no suspicion that he had also launched a look which disturbed Cosette. ”

“ This vexed Cosette. One day, she said to Jean Valjean: "Father, let us stroll about a little in that direction." Seeing that Marius did not come to her, she went to him. In such cases, all women resemble Mahomet. And then, strange to say, the first symptom of true love in a young man is timidity; in a young girl it is boldness. This is surprising, and yet nothing is more simple. It is the two sexes tending to approach each other and assuming, each the other's qualities.
That day, Cosette's glance drove Marius beside himself, and Marius' glance set Cosette to trembling. ”