One of my favorite novels. Thanks for reminding me of it. Along with "The Demolished Man" some of the very best of the 1950s. While I hardly read fiction anymore, it's sad that the SF corpus from the 1940s and 1950s seems to be lost. Doubly sad to walk the SF aisle at the bookstores anymore.
If I may, you might enjoy "Altered Carbon" by Richard Morgan. However, it is quite violent but also imaginative and has a sense of wonder.
Finally, while I didn't like the novel "The Broken God" (David Zindell) as much as some, a quote from it is suggested by this post: "An acorn does not fear becoming an oak." Some will sieze humanity's future and others, alas, will remain acorns.