Meaning: The quote "It is wisdom in prosperity, when all is as thou wouldn't have it, to fear and suspect the worst" by Desiderius Erasmus, a Renaissance philosopher, captures the idea of being cautious and maintaining a sense of skepticism even in times of prosperity. This quote reflects a timeless wisdom that encourages individuals to be mindful of potential challenges and to avoid complacency, particularly when things are going well.

Desiderius Erasmus was a Dutch Renaissance humanist, theologian, and scholar who lived in the late 15th and early 16th centuries. He is known for his critical thinking, wit, and advocacy for reform within the Catholic Church. Erasmus was a prolific writer and his works often touched on the themes of human nature, morality, and the pursuit of wisdom.

In the context of the quote, "wisdom in prosperity" implies that during times of success and abundance, it is important to exercise prudence and caution. It suggests that when everything seems to be going well, it is wise to remain vigilant and anticipate potential challenges or setbacks. This mindset can help individuals avoid becoming complacent and overconfident, which can lead to overlooking potential risks or vulnerabilities.

The phrase "when all is as thou wouldn't have it" indicates that even when everything is going according to one's desires or expectations, it is crucial to maintain a sense of vigilance. It is a reminder that external appearances of prosperity may not always reflect the full reality of a situation, and that unseen dangers or obstacles could still be present.

The latter part of the quote, "to fear and suspect the worst," emphasizes the importance of being prepared for adversity, even in times of prosperity. Erasmus suggests that it is prudent to entertain a healthy level of skepticism and to consider potential negative outcomes, rather than assuming that everything will continue to go smoothly.

This quote can be interpreted as a call for balanced thinking and the cultivation of a mindset that acknowledges both the positive and negative aspects of any situation. It encourages individuals to avoid being blindsided by unforeseen challenges and to approach prosperity with a sense of cautious optimism.

Furthermore, the quote may also be seen as a reflection of Erasmus's broader philosophical outlook, which often emphasized the importance of humility, self-awareness, and the recognition of human fallibility. In many of his writings, Erasmus expressed skepticism about human nature and the potential for moral and ethical failings, and this quote can be viewed as an extension of that perspective.

In conclusion, Desiderius Erasmus's quote "It is wisdom in prosperity, when all is as thou wouldn't have it, to fear and suspect the worst" encapsulates a timeless wisdom that encourages individuals to maintain a sense of caution and skepticism even in times of prosperity. It serves as a reminder to avoid complacency and to be prepared for potential challenges, reflecting Erasmus's broader philosophical emphasis on humility and self-awareness.