Optimization hinders evolution.

~ Anon.

The basis of optimism is sheer terror.

~ Oscar Wilde

The basis for optimism is sheer terror.

~ Oscar Fingall O'Flahertie Wills Wilde

Perpetual optimism is a force multiplier.

~ Colin Powell

Optimism is a kind of heart stimulant--the digitalis of failure.

~ Elbert Hubbard

The place where optimism most flourishes is the lunatic asylum.

~ Henry Havelock Ellis

I find nothing more depressing than optimism.

~ Paul Fussell

Optimism is essential to achievement and it is also the foundation of courage and true progress.

~ Lloyd Alexander

What passes for optimism is most often the effect of an intellectual error.

~ Raymond Claud Ferdinan Aron

These are the soul's changes. I don't believe in aging. I believe in forever altering one's aspect to the sun. Hence my optimism.

~ Oscar Fingall O'Flahertie Wills Wilde