You have to travel globally today to know what's going on and maintain an edge.
Yuri Milner
People with Parkinson's are not some weird people on the edge of human experience.
Helen Mirren
'Tis the sharpness of our mind that gives the edge to our pains and pleasures.
Michel de Montaigne
Living at that pitch, on that edge, is something which many poets engage in to some extent.
Paul Muldoon