There is nothing that man fears more than the touch of the unknown. He wants to see what is reaching towards him, and to be able to recognize or at least classify it. Man always tends to avoid physical contact with anything strange.
Elias Canetti

Therefore I would not have it unknown to Your Holiness, the the only thing which induced me to look for another way of reckoning the movements of the heavenly bodies was that I knew that mathematicians by no means agree in their investigation thereof.
Nicolaus Copernicus

To explain the unknown by the known is a logical procedure; to explain the known by the unknown is a form of theological lunacy.
David Brooks

Training of female athletes is so new that the limits of female possibility are still unknown.
Katherine Dunn

True poetry is similar to certain pictures whose owner is unknown and which only a few initiated people know.
Eugenio Montale

Uniform ideas originating among entire peoples unknown to each other must have a common ground of truth.
Giambattista Vico

Very few beings really seek knowledge in this world. Mortal or immortal, few really ASK. On the contrary, they try to wring from the unknown the answers they have already shaped in their own minds.
Anne Rice

Vision is perhaps our greatest strength... it has kept us alive to the power and continuity of thought through the centuries, it makes us peer into the future and lends shape to the unknown.
Li Ka Shing

We all have a fear of the unknown what one does with that fear will make all the difference in the world.
Lillian Russell

We are only puppets, our strings are being pulled by unknown forces.
Georg Buchner

We have an unknown distance yet to run, an unknown river to explore. What falls there are, we know not; what rocks beset the channel, we know not; what walls ride over the river, we know not. Ah, well! we may conjecture many things.
John Wesley Powell

We have found a strange footprint on the shores of the unknown.
Arthur Eddington

We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75.
Dmitri Mendeleev

We really teach ourselves. If you want to learn, you will always find someone to learn from, be they dead or alive, great or unknown. You learn from everything you see and hear around you - if you are willing to pay attention.
Alexander Volkov

We stand today on the edge of a new frontier - the frontier of the 1960's - a frontier of unknown opportunities and perils - a frontier of unfulfilled hopes and threats.
John F. Kennedy

We're not afraid of risking what was our success yesterday in order to explore some new field. We're adventurous. We like the challenge of unknown territory, unknown artistic field, and that's what stimulates us.
Guy Laliberte

What then do you call your soul? What idea have you of it? You cannot of yourselves, without revelation, admit the existence within you of anything but a power unknown to you of feeling and thinking.
Voltaire

When language was not transcendental enough to complete the meaning of a revelation, symbols were relied upon for heavenly teaching, and familiar images, chosen from the known, were made to mirror the unknown spiritual truth.
William H. Hunt

When the fabric of the universe becomes unknown, it is the duty of the university to produce weavers.
Gordon Gee

When you're bringing in a fairly unknown candidate challenging a sitting president, the population needs a lot more information than reduced coverage provides.
Walter Cronkite