But with the slow menace of a glacier, depression came on. No one had any measure of its progress; no one had any plan for stopping it. Everyone tried to get out of its way.
— Frances Perkins

Pain reaches the heart with electrical speed, but truth moves to the heart as slowly as a glacier.
Barbara Kingsolver glacier quote

The universe is one great kindergarten for man. Everything that exists has brought with it its own peculiar lesson. The mountain teaches stability and grandeur; the ocean immensity and change. Forests, lakes, and rivers, clouds and winds, stars and flowers, stupendous glaciers and crystal snowflakes--every form of animate or inanimate existence, leaves its impress upon the soul of man.
— Orison Swett Marden

The glacier was God's great plough set at work ages ago to grind, furrow, and knead over, as it were, the surface of the earth.
— Louis Agassiz

Remember, the Arctic didn't have any ice. And the Northwest Passage was wide open. They were raising grapes in Scotland for God sakes, had a huge winery. Iceland was a farming community. As some of the glaciers retreated they found villages that were covered with ice.
— glacier quotation by Don Young