Neither a person nor a nation can exist without some higher idea. And there is only one higher idea on earth, and it is the idea of the immortality of the human soul, for all other "higher" ideas of life by which humans might live derive from that idea alone.
Fyodor Dostoevsky, Kenneth Lantz, Gary Saul Morson (1997). “Writer's Diary Volume 1: 1873-1876”, p.734, Northwestern University Press