leo tolstoy
wikipedia
note: quotes may have been translated
"Men cannot know when the day and the hour of the kingdom of God will come, because its coming depends on themselves alone"
from The Kingdom of God is Within You, 1894
"What is socialism but a protest against this abnormal position in which the greater proportion of our world has been placed?"
from The Kingdom of God is Within You, 1894
note: tolstoy did not describe himself as a socialist for various reasons. so, he is simply observing here- but it is a good observation!