Art in Nature is rhythmic and has a horror of constraint.

— Robert Delaunay

Love has the power to create an inviting space in the lives of people. But if daily routine kills dreamy or passionate thoughts, the constraint of the room may become oppressive and the emptiness unbearable. The room loses then its original fullness and turns into a place of nothingness. ( ' Another empty room' ).

— Erik Pevernagie

It is our courage which defines us, not our constraints.

— Gyan Nagpal

Imperfect knowledge, incomplete assessment of feedback, limited memory and recall, as well as poor problem-solving skills result in a form of rationality that attains not optimal decisions but more or less satisfactory compromises between conflicting constraints.

— Manuel De Landa