The greatness of man is so evident that it is even proved by his wretchedness. For what in animals is nature, we call in man wretchedness--by which we recognize that, his nature being now like that of animals, he has fallen from a better nature which once was his.
Blaise PascalOn the occasions when I have pondered over men's various activities, the dangers and worries they are exposed to at Court or at war, from which so many quarrels, passions, risky, often ill-conceived actions and so on are born, I have often said that man's unhappiness springs from one thing alone, his incapacity to stay quietly in one room.
Blaise Pascal