“For what a man is in himself, what accompanies him when he is alone, what no one can give or take away, is obviously more essential to him than everything he has in the way of possessions”
Schopenhauer ranks enduring personal qualities above possessions, placing character and inner resources closer to the center of life than external ownership.
Source details
The Wisdom of Life, T. Bailey Saunders translation; Project Gutenberg #10741. The sentence continues by contrasting inner qualities with social reputation.