" An excellent man, like precious metal, is in every way invariable; A villain, like the beams of a balance, is always varying, upwards and downwards. "
- John Locke

In essence, John Locke’s statement suggests that a person of high moral character remains consistent and unwavering over time, much like how precious metals retain their value and integrity regardless of external conditions. Conversely, individuals who lack integrity are likened to the unstable beams in a balance scale, swinging unpredictably up or down depending on circumstances. This comparison implies that someone lacking strong principles will adjust their behavior and ethics based on what they perceive as beneficial at any given moment.

Exploring deeper into this quote, Locke is emphasizing the importance of having a solid foundation of values and principles. A person with steadfast integrity will stand firm even when faced with challenging situations or temptations that might sway others to act against their moral compass. This consistency in character, according to Locke, reflects true excellence in human nature. On the other hand, those who lack such stability are depicted as unreliable and inconsistent, often bending their principles for personal gain or comfort. The metaphor of the balance scale’s beam effectively highlights the fickleness and unpredictability inherent in people without a strong ethical core.

John Locke was an influential English philosopher whose ideas significantly impacted modern political thought and philosophy during the Enlightenment era. Known for his contributions to empiricism and social contract theory, he argued that human beings are born with a clean slate (tabula rasa) and develop their understanding through experience and perception. His work profoundly influenced the development of liberalism and the principles upon which many modern democratic societies are based.