Final answer:
The quote refers to understanding a person's true character through their actions in leadership, and it ties into historical discussions about governance and integrity.
Step-by-step explanation:
The quote “You cannot know a man completely, his character, his principles, sense of judgment, not till he's shown his colors ruling the people” speaks to the idea that a person's true nature is revealed through their actions, particularly when they are in positions of power. It reflects on leadership, character, and integrity.
The context and various texts provided seem to touch upon historical figures and their virtues or lack thereof, including criticisms from Cicero and observations on leadership akin to those made by Abraham Lincoln. These reflections fall into discussions about the nature of governance, the kind of rulers societies should aspire to have, and how the characters of those in power can deeply impact society.