"Pythagoras urged upon the young men … to observe how absurd it would be to rate the reasoning power as the chief of their faculties, and indeed consult about all other things by its means, and yet bestow no time or labor on its exercise. Attention to the body might be compared to unworthy friends, and is liable to rapid failure; while erudition lasts till death, and for some procures post-mortem renown, and may be likened to good, reliable friends. Pythagoras continued to draw illustrations from history and philosophy, demonstrating that erudition enables a naturally excellent disposition to share in the achievements of the leaders of the race."
January 1, 1970
https://en.wikiquote.org/wiki/Studying