The key to the mystery of a great artist is that for reasons unknown, he will give away his energies and his life just to make sure that one note follows another... and leaves us with the feeling that something is right in the world.
Leonard Bernstein

The mind loves the unknown. It loves images whose meaning is unknown, since the meaning of the mind itself is unknown.
Rene Magritte

The one permanent emotion of the inferior man is fear - fear of the unknown, the complex, the inexplicable. What he wants above everything else is safety.
H. L. Mencken

The people were simpler, more peaceable and friendly in their manners and dispositions; and assassinations, which give the southern provinces so ill a reputation, were almost unknown.
Henry Walter Bates

The place of my birth, and residence for nearly sixteen years, in the early part of my life, became endeared to my feelings and affections; and more especially so after I had quitted it for an unknown place, and to associate with strangers.
John Britton

The point at which we worked with some of these actors, they weren't really stars yet. Nicolas Cage was not a big star when we did Raising Arizona. A lot of these people were also virtually unknown, too, when we worked with them first.
Joel Coen

The reason sport is attractive to many of the general public is that it's filled with reversals. What you think may happen doesn't happen. A champion is beaten, an unknown becomes a champion.
Roger Bannister

The true adventurer goes forth aimless and uncalculating to meet and greet unknown fate.
O. Henry

The twentieth century has exhibited a barbarism and lack of respect for human life on a massive scale just about unknown before.
Ron Silver

The ultimate aim of all science to penetrate the unknown. Do you realize we know less about the earth we live on than about the stars and the galaxies of outer space? The greatest mystery is right here, right under our feet.
Walter Reisch

The Universe is the periodical manifestation of this unknown Absolute Essence.
H. P. Blavatsky

The work an unknown good man has done is like a vein of water flowing hidden underground, secretly making the ground green.
Thomas Carlyle

There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.
Donald Rumsfeld

There are no accounting issues, no trading issues, no reserve issues, no previously unknown problem issues.
Kenneth Lay

There are things known and there are things unknown, and in between are the doors of perception.
Aldous Huxley

There are things known and things unknown and in between are the doors.
Jim Morrison

There are two great unknown forces today, electricity and woman, but men can reckon much better on electricity than they can on woman.
Josephine K. Henry

There are unknown forces in nature; when we give ourselves wholly to her, without reserve, she lends them to us; she shows us these forms, which our watching eyes do not see, which our intelligence does not understand or suspect.
Auguste Rodin

There came to port last Sunday night the queerest little craft, without an inch of rigging on; I looked and looked - and laughed. It seemed so curious that she should cross the unknown water, and moor herself within my room - my daughter! O my daughter!
George Washington Cable

There is not a truth existing which I fear... or would wish unknown to the whole world.
Thomas Jefferson