inexhaustibleness

But no one can grapple with history without feeling its inexhaustibleness.

All through the Bible are passages which extol the height and depth, the breadth and power, the inexhaustibleness of love.

We judge of a man's wisdom by his hope, knowing that the perception of the inexhaustibleness of nature is an immortal youth.

But I admire your inexhaustibleness in being ready for midnight refreshment after such a feast.

His first returning joy came from a sense of the inexhaustibleness and infinity of nature.