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- The person attempting to travel two roads at once will get nowhere.
- Quoted in: Errick A. Ford (2010) Iron Sharpens Iron: Wisdom of the Ages, p. 48
- In order to properly understand the big picture, everyone should fear becoming mentally clouded and obsessed with one small section of truth.
- Quoted in: Joan Klostermann-Ketels (2011) HumaniTrees, p. 96
- Human nature is evil, and goodness is caused by intentional activity.
- Quoted in: Fayek S. Hourani (2012) Daily Bread for Your Mind and Soul, p. 336