"Each pursues his own theory, little solicitous to correct or improve it by an attention to what is advanced by his opponents"

This quote by Thomas Malthus recommends that people are often unwilling to consider the ideas of those who disagree with them. Instead, they are more focused on their own beliefs and theories, and are not open to the possibility of changing their minds. This can be seen in numerous elements of life, from politics to religion to everyday discussions. People frequently end up being entrenched in their own views and hesitate to think about the viewpoints of others. This can cause an absence of progress and understanding, as people are not going to gain from each other. Malthus' quote serves as a reminder that it is essential to be open to the concepts of others, even if they differ from our own. By doing so, we can learn from each other and make progress in our understanding of the world.