No one knows the story of tomorrow's dawn. -- African Proverb

Nothing is certain but uncertainty. -- Latin Proverb

The wise person possesses humility. He knows that his small island of knowledge is surrounded by a vast sea of the unknown. -- Harold C. Chase

Maturity is the capacity to endure uncertainty. -- John Finley

Uncertainty and expectation are the joys of life. Security is an insipid thing. -- William Congreve

All uncertainty is fruitful...so long as it is accompanied by the wish to understand. - Antonio Machado

On an unknown path, it is better to be slow. - Irish Proverb

Overcoming the unexpected and discovering the unknown is what ignites our spirit. It is what life is all about. - Daniel S. Goldin

It's better to plunge into the unknown than to try to make sure of everything. -- Gerald Lescarbeault

When you come to the edge of all the light you know, and are about to step off into the darkness of the unknown, faith is knowing one of two things will happen: there will be something solid to stand on, or you will be taught how to fly. -- Barbara J. Winter

Everyone's future is, in reality, an urn full of unknown treasures from which all may draw unguessed prizes. -- Lord Dunsany