If you want to build a ship, don't drum up people to collect wood and don't assign them tasks and work, but rather teach them to long for the endless immensity of the sea.
— Antoine de Saint-Exupery

One thought fills immensity.
William Blake immensity quote

Our sun is one of 100 billion stars in our galaxy. Our galaxy is one of billions of galaxies populating the universe. It would be the height of presumption to think that we are the only living beings in that enormous immensity.
— Wernher Von Braun

For such will be our ruin if you, in the immensity of your public abstractions, forget the private figure, or if we in the intensity of our private emotions forget the public world. Both houses will be ruined, the public and the private, the material and the spiritual, for they are inseparably connected.
— Virginia Woolf

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.
— immensity quotation by Orison Swett Marden