Unlimited Quote Collections
Organize your favorite quotes without limits. Create themed collections for every occasion with Premium.
" "[Systems should be classified] on the basis of the types of inputs with which they must cope.
Robert Engel Machol (October 16, 1917 – November 12, 1998) was an American systems engineer and Professor of Systems at the Kellogg Graduate School of Management of Northwestern University.
Unlimited Quote Collections
Organize your favorite quotes without limits. Create themed collections for every occasion with Premium.
Related quotes. More quotes will automatically load as you scroll down, or you can use the load more buttons.
Unlimited Quote Collections
Organize your favorite quotes without limits. Create themed collections for every occasion with Premium.