This quote is a reflection on the concept of moderation, which is often seen as the key to a balanced and fulfilling life. In essence, Voltaire is saying that neither extreme self-denial (abstinence) nor overindulgence (excess) leads to happiness. Instead, a middle ground, where one enjoys life’s pleasures without becoming enslaved to them, is the path to true contentment.

The first part, “Use, do not abuse,” implies that one should engage with the world and enjoy its offerings, but not to the point of excess or abuse. This could apply to anything from food and drink to work and leisure. The idea is to partake without overdoing it, to savor without becoming insatiable.

The second part, “neither abstinence nor excess ever renders man happy,” further reinforces this idea. Abstinence, or completely refraining from something, can lead to deprivation and longing. On the other hand, excess, or indulging too much in something, can lead to dependency or addiction. Both extremes are detrimental to one’s well-being and happiness.

Applying this quote to today’s world, it’s not hard to see its relevance. In a society often driven by consumerism and instant gratification, it’s easy to fall into the trap of excess. Whether it’s overworking, overeating, overspending, or overusing technology, many people struggle with finding a healthy balance.

In terms of personal development, this quote can serve as a reminder to strive for balance in all aspects of life. It encourages self-discipline, mindful consumption, and the pursuit of sustainable habits. For example, rather than working to the point of burnout, one could aim for a balanced work-life dynamic. Instead of dieting excessively or indulging in unhealthy foods, one could strive for a balanced, nutritious diet.

Ultimately, Voltaire’s quote is a timeless reminder that moderation, balance, and mindful engagement with the world are key to a fulfilling, happy life.