"I can't be a pessimist because I'm alive."

"—Blessed are they who expect the worst, for they shall get it!"

"If you expect the worst from a person, you can't ever be disappointed. Only the disappointed resort to violence. The …"

"Whatever pretended pessimists in search of notoriety may say, most people are naturally kind, at heart."

"Creeds matter very little. ... The optimist proclaims that we live in the best of all possible worlds; and the pessim…"

"I am so often accused of gloominess and melancholy. And I think I'm probably the most cheerful man around. I don't co…"

"I believe that there is a moral government; and that God reigns. I am no pessimist; I give thanks to the good Lord, a…"

"Man, at least when educated, is a pessimist. He believes it safer not to reflect on his achievements; Jove is known t…"

"The literature doesn't show that positive thinking helps (sports) performance; what the literature shows is that nega…"

"if we see a light at the end of the tunnel, it's the light of an oncoming train."