A pessimist is a man who has been compelled to live with an optimist.

And who is and should be a pessimist? He who is mature for death and is in no condition to love life, just as the optimist cannot turn away from it. If he does not realize that he will live on in his children, his procreation loses its horrible character; but if he does realize it, he will recoil in horror from it, just like Humboldt when he noticed that the torments that another being must endure for perhaps eighty years are too high a price to pay for a few minutes of pleasure, and will consider the procreation of children, and rightly so, as a crime.

A pessimist is a man who thinks all women are bad. An optimist is a man who hopes they are.

A pessimist is one who, when he has the choice of two evils, chooses both.

A pessimist is a man who looks both ways when he crosses the street.

A pessimist is somebody who complains about the noise when opportunity knocks.

I can't be a pessimist because I am alive. To be a pessimist means that you have agreed that human life is an academic matter. So, I am forced to be an optimist. I am forced to believe that we can survive, whatever we must survive.

Pessimist: the optimist who didn't arrive.

A pessimist is one who makes difficulties of his opportunities and an optimist is one who makes opportunities of his difficulties.

The pessimist resembles a man who observes with fear and sadness that his wall calendar, from which he daily tears a sheet, grows thinner with each passing day. On the other hand, the person who attacks the problems of life actively is like a man who removes each successive leaf from his calendar and files it neatly and carefully away with its predecessors, after first having jotted down a few diary notes on the back. He can reflect with pride and joy on all the richness set down in these notes, on all the life he has already lived to the fullest. What will it matter to him if he notices that he is growing old? Has he any reason to envy the young people whom he sees, or wax nostalgic over his own lost youth? What reasons has he to envy a young person? For the possibilities that a young person has, the future which is in store for him?

No, thank you,' he will think. 'Instead of possibilities, I have realities in my past, not only the reality of work done and of love loved, but of sufferings bravely suffered. These sufferings are even the things of which I am most proud, although these are things which cannot inspire envy.

The optimists and the pessimists: I have been studying them for the past twenty-five years. The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault. The optimists, who are confronted with the same hard knocks of this world, think about misfortune in the opposite way. They tend to believe defeat is just a temporary setback, that its causes are confined to this one case. The optimists believe defeat is not their fault: Circumstances, bad luck, or other people brought it about. Such people are unfazed by defeat. Confronted by a bad situation, they perceive it as a challenge and try harder.

A pessimist is a person who finds an oyster in a pearl.

"What is an optimist? The man who says, "It's worse everywhere else. We're better off than the rest of the world. We've been lucky." He is happy with things as they are and he doesn't torment himself.

What is a pessimist? The man who says, "Things are fine everywhere but here. Everyone else is better off than we are. We're the only ones who've had a bad break." He torments himself continually."

Let pessimism once take hold of the mind, and life is all topsy-turvy, all vanity and vexation of spirit. There is no cure for individual or social disorder, except in forgetfulness and annihilation. "Let us eat, drink and be merry," says the pessimist, "for to-morrow we die." If I regarded my life from the point of view of the pessimist, I should be undone. I should seek in vain for the light that does not visit my eyes and the music that does not ring in my ears. I should beg night and day and never be satisfied. I should sit apart in awful solitude, a prey to fear and despair. But since I consider it a duty to myself and to others to be happy, I escape a misery worse than any physical deprivation.