Benjamin Franklin? Anonymous? Dear Quote Investigator: Recently,I came across an insightful saying approximately psychology: Three of the hardest entities are steel, a diamond, and self-knowledge. Would you please abet me to determine the originator? Quote Investigator: In 1750 statesman Benjamin Franklin included an instance in “Poor Richard’s Almanack”. The word “extremely” was spelled “extreamly”. […]
Source: quoteinvestigator.com