Sound opinions are valueless. What matters is who holds them.

The development of technology will leave only one problem: the infirmity of human nature.

The world has become uglier since it began to look into a mirror every day; so let us settle for the mirror image and do without an inspection of the original.

The discovery of the North Pole is one of those realities which could not be avoided. It is the wages which human perseverance pays itself when it thinks that something is taking too long. The world needed a discoverer of the North Pole, and in all areas of social activity, merit was less important here than opportunity.

Nowadays the thief cannot be distinguished from his victim. Neither has any valuable objects on him.

Language is the mother of thought, not its handmaiden.

Sorrento, August. For two weeks now I haven't heard a German word or understood an Italian one. This way one can manage to live with people; everything goes like clockwork and no irksome misunderstanding can arise.