Whether something is self-evident depends on the context and the individual's perspective. Some concepts or truths may be considered self-evident to one person but not to another. In general, self-evident truths are those that are immediately obvious or universally accepted without the need for further explanation or justification. However, what is self-evident to one person may not be to another, so it is important to consider different viewpoints when determining if something is self-evident. **

While some concepts may seem self-evident to some individuals, it is important to remember that not everyone may share the same understanding or perspective. What may be obvious to one person may not be as clear to another, due to differences in knowledge, experiences, or beliefs. Therefore, it is always beneficial to communicate and explain ideas thoroughly to ensure mutual understanding and clarity. **

Set theory is considered self-evident because it provides a foundational framework for understanding the concept of collections and their properties. The basic axioms of set theory, such as the existence of the empty set and the concept of subsets, are intuitive and can be easily grasped. Additionally, set theory serves as the basis for many other branches of mathematics, providing a clear and consistent language for expressing mathematical ideas. Its self-evidence lies in its ability to capture the fundamental nature of collections and their relationships in a simple and intuitive way. **

On the wedding night, it is self-evident that two individuals are coming together to start a new chapter in their lives as a married couple. It is a night filled with excitement, anticipation, and love as they consummate their marriage. The commitment and bond they share become more tangible and real as they begin their journey as partners for life. **

It is unclear without more context who "he" refers to in this question. However, if we assume "he" refers to a specific individual, then whether something has become too self-evident for him would depend on the specific situation and the individual's level of understanding or familiarity with the subject. If something has become too self-evident for him, it may suggest that he has mastered the concept or topic to the point where it no longer presents a challenge or requires further exploration. **

It should be self-evident to keep one's promise in situations where trust and integrity are crucial, such as in personal relationships, business agreements, and professional commitments. Keeping one's promise demonstrates reliability, honesty, and respect for others, which are essential for maintaining healthy and successful relationships. Failing to uphold promises in these contexts can lead to broken trust, damaged reputations, and negative consequences for all parties involved. **

Self-control is the ability to regulate and manage one's own thoughts, emotions, and behaviors in order to achieve long-term goals and resist short-term temptations. It involves making conscious decisions to delay gratification and exert discipline over one's impulses. Self-control is an important skill for achieving success in various aspects of life, including personal relationships, health, and career. It requires practice and effort to develop, but it can lead to improved self-discipline, resilience, and overall well-being. **

One can learn self-discipline and self-control through consistent practice and setting clear goals. Developing a routine and sticking to it can help build self-discipline, as well as breaking down larger tasks into smaller, manageable steps. Additionally, mindfulness and self-awareness can help individuals recognize their impulses and make conscious choices to exercise self-control. Seeking support from others, such as a mentor or support group, can also provide accountability and guidance in developing these skills. **