Assuming Quote by Anonymous

If I advocate cautious optimism it is not because I do not have faith in the future but because I do not want to…

— Aung San Suu Kyi

I do think that I am generally optimistic.

— Barack Obama

And if my present actions strike you as foolish, let's just say I've been accused of folly by a fool.

— Sophocles

You will rarely make wise decisions if you surround yourself with fools

— Rasheed Ogunlaru

If you're not optimistic on some level, then you've given up.

— Viggo Mortensen

A widespread belief is more often likely to be foolish than sensible.

— Bertrand Russell

There's probably a little greater case for pessimism than optimism. But I do not rule out optimism.

— Jim Leach

Sometimes its wise to be foolish.

— Dr Kurien S Thomas

It is foolish to be convinced without evidence, but it is equally foolish to refuse to be convinced by real evidence.

— Upton Sinclair

Foolish indeed are those who trust to fortune.

— Murasaki Shikibu

Optimism is a self-fulfilling prophecy.

— Jeannette Walls

Wise men say, and not without reason, that whosoever wished to foresee the future might consult the past.

— Niccolo Machiavelli