Light is meaningful only in relation to darkness, and truth presupposes error. It is these mingled opposites which people our life, which make it pungent, intoxicating. We only exist in terms of this conflict, in the zone where black and white clash.
Louis Aragon (1897-1982) French poet, novelist, and essayist.
The world is not dialectical -- it is sworn to extremes, not to equilibrium, sworn to radical antagonism, not to reconciliation or synthesis. This is also the principle of evil.
Jean Baudrillard (1929-2007) French sociologist, and philosopher.
Without contraries is no progression. Attraction and repulsion, reason and energy, love and hate, are necessary to human existence.
William Blake (1757-1827) British poet and painter.
Every sweet has its sour; every evil its good.
Ralph Waldo Emerson (1803-1882) U.S. poet, essayist and lecturer.
It happens as one sees in cages: the birds who are outside despair of ever getting in, and those within are equally desirous of getting out
Montaigne (1533-1592) French philosopher and essayist.
Every moment of light and dark is a miracle.
Walt Whitman (1819-1892) American poet.