The Last Harvest by John Burroughs

The clouds are transient, but the sky is permanent. The petals of a flowering plant are transient, the leaves and fruit are less so, and the roots the least transient of all. The dew on the grass is transient, as is the frost of an autumn morning. The snows and the rains abide longer. The splendors of summer and sunrise and sunset soon pass, but the glory of the day lasts. The rainbow vanishes in a few moments, but the prismatic effect of the drops of rain is a law of optics. Colors fade while texture is unimpaired.

Of course change marks everything, living or dead. Even the pole star in astronomic time will vanish. But consider things mundane only. How the rocks on the seacoast seem to defy and withstand the waves that beat against them! "Weak as is a breaking wave" is a line of Wordsworth's. Yet the waves remain after the rocks are gone. The sea knows no change as the land does. It and the sky are the two unchanging earth features.