One can certainly learn to be more assertive and decisive, but true ruthlessness involves a lack of empathy and concern for others. It is not a trait that can be taught or learned in a traditional sense, as it goes against the values of compassion and empathy that are typically instilled in individuals. While one can develop a tougher exterior or become more focused on their goals, true ruthlessness is not a desirable or ethical trait to cultivate. **

Ruthlessness may lead to short-term gains by allowing individuals or organizations to prioritize their own interests over others and make aggressive decisions. However, in the long run, ruthlessness can damage relationships, reputation, and trust, which can ultimately decrease returns. Building strong, collaborative relationships and maintaining a positive reputation are often more sustainable strategies for long-term success and higher returns. Therefore, while ruthlessness may provide initial gains, it is not a reliable or sustainable approach for increasing returns in the long term. **

Criminals are often admired for their ruthlessness because society sometimes glorifies individuals who are seen as powerful and fearless. The media and popular culture often portray criminals as rebellious and daring, which can attract admiration from those who are drawn to their perceived confidence and charisma. Additionally, some people may admire criminals for their ability to break societal norms and rules, viewing them as living outside the constraints of conventional morality. **

A person with traits such as cunning, ruthlessness, cold-bloodedness, and deceitfulness may be driven by a deep-seated desire for power, control, and self-preservation. They may have experienced trauma or difficult circumstances that led them to develop these traits as a means of survival. Additionally, they may lack empathy and have a distorted sense of morality, allowing them to justify their actions in pursuit of their goals. Ultimately, their behavior may stem from a combination of psychological, environmental, and personal factors. **

The decision to teach or study depends on your interests, skills, and long-term goals. If you have a passion for sharing knowledge, helping others learn, and making a positive impact on students' lives, then teaching may be a fulfilling career choice for you. On the other hand, if you have a strong desire to deepen your own understanding of a particular subject or field, pursuing further studies may be the best option. Consider your strengths, career aspirations, and personal values to make an informed decision about whether to teach or study. **

Teaching knowledge to an aggressive monkey can be challenging, but it is possible with patience and positive reinforcement. Start by building trust with the monkey through calm interactions and offering rewards for good behavior. Use simple and repetitive teaching methods, such as using visual aids or hands-on activities, to help the monkey understand the concepts you are trying to teach. It is important to create a safe and controlled environment for both you and the monkey during the teaching process. **

There are several ways to further educate yourself in general knowledge using your mobile phone. You can download educational apps that cover a wide range of topics such as history, science, and current events. Additionally, you can subscribe to podcasts or audiobooks that discuss various subjects and listen to them during your free time. You can also follow reputable news sources and websites that provide informative articles and videos on a variety of topics. Finally, you can join online forums and discussion groups where you can engage in conversations with others and learn from their knowledge and experiences. **

Yes, it is possible for foreigners to study in Germany without knowledge of German, especially at the graduate level. Many universities offer programs taught in English, particularly in the fields of science, technology, engineering, and mathematics. However, having some knowledge of German can be beneficial for daily life and integration into the local community. Some universities also offer language courses for international students to help them improve their German language skills. **