“A pessimist is a man who tells the truth prematurely.”

“The insufferable arrogance of human beings to think that Nature was made solely for their benefit, as if it was conceivable that the sun had been set afire merely to ripen men's apples and head the...”

“Perish the universe, provided I have my revenge!”

“A kiss is a rosy dot over the 'i' of loving.”

“I may climb perhaps to no great heights, but I will climb alone.”

“I think the Moon is a world like this one, and the Earth is its moon. My friends greeted this with a burst of laughter. And maybe, I told them, someone on the Moon is even now making fun of someone...”