Either they were stupid, or they were optimists. Most…

“...studies show that in general, optimists die ten years earlier than pessimists." "I find that hard to believe" "Of course you do, you're an…

— Susin Nielsen

Optimists and pessimists die the exact same death, but they live very different lives!

— Shimon Peres

“And truthfully, when microbiologists talk amongst ourselves, off the record after a few glasses of wine, the optimists admit their optimism is more wishful…

— Sean Chercover

Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists.

— Thomas Friedman

“Optimists see the glass as half full. Pessimists see the glass as half empty. Experiential trainers see the whole glass and its context.”

— Bogdan Vaida

...the incontestable truth is that America has been built up by optimists, not by pessimists, but by men possessing courage, confidence in the nation's…

— B. C. Forbes

Pessimists fear becoming the dupes of Hope. Optimists enjoy Hope's company, and consider being duped no great matter.

— Mason Cooley

But black folks have never really been optimists. We've been prisoners of hope, and hope is qualitatively different from optimism in the way that…

— Cornel West

In this world, the optimists have it, not because they are always right, but because they are positive. Even when they are wrong they…

— David Landes

There would be a lot more optimists if it weren't for the rise-and-shine requierement.

— Robert Breault

The bottom line on attitude is that a good one helps to increase your possibilities. Pessimists usually get what they expect. So do optimists.

— John C. Maxwell

“There are a good many people always buoyant in spirit and mirthful in appearance as if born optimists. There are also no fewer persons…

— Kaiten Nukariya

Both my wife and I are optimists and we look at the positives in life.

— Ben Fogle

“How little one is justified in speaking in this connection of "optimism" and "pessimism" and how much the characterization of liberalism as "optimistic" aims…

— Ludwig von Mises

“History has a cruel way of disappointing optimists.”

— Keith Thompson