John Berger said this quote
“ But for the overcrowded, for those who have little or nothing except, sometimes, courage and love, hope works differently. Hope is then something to bite on, to put between the teeth. Don't forget this. Be a realist. With hope between the teeth comes the strength to carry on even when fatigue never lets up, comes strength, when necessary, to choose not to shout at the wrong moment, comes the strength above all not to howl. A person, with hope between her or his teeth, is a brother or sister who commands respect. ”