This quote, "But thousands die without or this or that, Die, and endow a college or a cat" is a satirical commentary on the human tendency to leave behind legacies, often in the form of financial endowments, to institutions or even pets, rather than to people who might need them more. The quote suggests that many people pass away without a clear purpose or direction in their lives, and their final acts of philanthropy, while potentially noble, are somewhat misguided or arbitrary.

In the first part of the quote, "But thousands die without or this or that," the author is pointing out the aimlessness or lack of fulfillment that many people experience in their lives. The "this or that" could refer to various achievements, goals, or tangible assets that people often strive for in their lives.

The second part, "Die, and endow a college or a cat," is a critique of how people try to create a lasting legacy after death. Endowing a college could be seen as a noble act, contributing to education and societal progress. However, leaving wealth to a cat, while it might be seen as an act of love for a beloved pet, could also be seen as an act of extravagance or even folly, especially when there are so many humans in need.

In today’s world, this quote could be applied to the way some people focus on accumulating wealth and possessions, often forgetting to live a meaningful life or to make a positive impact on the lives of others. It could also be seen as a commentary on misplaced priorities, where people value institutions or pets more than human connections or social causes.

In terms of personal development, this quote might serve as a reminder to focus on what truly matters in life. It suggests that one’s legacy should not be measured by wealth or material possessions left behind, but by the positive impact one has made on others’ lives. It can also be a call to action to live a purposeful life, to make conscious choices about one’s values and actions, and to strive for a meaningful legacy.