Whether our language is music or mathematics, computer code or cookery -- as we learn to love the language and treat it with good care, we find poetry. Because

*mathematics*is a concise language, with emphasis on placing the best words in the best order, it often is described by mathematicians and scientists as*poetry*. Alternatively, and more accessible to most readers than poetic mathematics, we find verses by poets who include the objects and terminology of mathematics in their lines.
One of my favorite poems of numbers is the portrait "Number Man," by Carl Sandburg (1878-1967), found in

*The Complete Poems of Carl Sandburg*(Harcourt, 2003). This poem also appears in*Strange Attractors: Poems of Love and Mathematics*(A K Peters, 2008) -- a varied collection of math-related poems edited by Sarah Glaz and me.

**Number Man**by Carl Sandburg

*(for the ghost of Johann Sebastian Bach)*

He was born to wonder about numbers.

He balanced fives against tens

and made them sleep together

and love each other.

He took sixes and sevens

and set them wrangling and fighting

over raw bones.

He woke up twos and fours

out of baby sleep

and touched them back to sleep.

He managed eights and nines,

gave them prophet beards,

marched them into mists and mountains.

He added all the numbers he knew,

multiplied them by new-found numbers

and called it a prayer of Numbers.

For each of a million cipher silences

he dug up a mate number

for a candle light in the dark.

He knew love numbers, luck numbers,

how the sea and the stars

are made and held by numbers.

He died from the wonder of numbering.

He said good-by as if good-by is a number.

The opening stanzas of this poem were posted earlier on April 26, 2010 along with several other "Poems starring mathematicians." Sandburg's tiny poem "Wind Song" was posted on July 21, 2011.

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