In this study, we examine how linguistic strategies used in presidential speeches lead to the powerful influence of such speeches on public opinion. We adopted a qualitative approach in which descriptive analysis with thematic coding and content analysis aims to capture and describe meaningful linguistic strategies in the case study design. We transcribe powerful or exemplary speeches by various world leaders from a specific period, such as Nelson Mandela’s inaugural speech in 1994, Ronald Reagan’s speech at the Brandenburg Gate in 1987, and Xi’s speech at the 19th National Congress in 2017, compiled by Barack Obama’s speech in Cairo in 2009 to trace subtle linguistic strategies. In the descriptive analysis, we examined key linguistic resources, including metaphorical resources, symbolic resources, and framing resources. In the analytical method, we used thematic coding and content analysis to explore meanings and effects. By comparing different linguistic strategies, similarities and differences can be demonstrated to uncover cultural and social subtleties. Conclusions will be drawn based on a reflective interpretation of the impact of these strategies on social perception. Empathy, symbols and frameworks are important, as well as catalysts for leader image, but the global social space has changed significantly. Presidents and prime ministers are to be more competent spokespersons for their country’s foreign policy. They must accept their role and responsibility to strengthen peace and advance common interests around the world. By showing the importance of oratorical skills in politics and society as a whole, and by suggesting future research, we hope that this research will prove useful and necessary. Very importantly, the methodology is peer-reviewed.