Ten Years Later: The Man in The Iron Mask by Alexandre Dumas Chapter 1 Page 20

The young man seemed as if he were going to give Aramis his hand; but the light which beamed in his eyes faded away, and he coldly and distrustfully withdrew his hand again. “Kiss the hand of a prisoner,” he said, shaking his head, “to what purpose?”

“Why did you tell me,” said Aramis, “that you were happy here? Why, that you aspired to nothing? Why, in a word, by thus speaking, do you prevent me from being frank in my turn?”

The same light shone a third time in the young man’s eyes, but died ineffectually away as before.

“You distrust me,” said Aramis.

“And why say you so, monsieur?”

“Oh, for a very simple reason; if you know what you ought to know, you ought to mistrust everybody.”