Dr. Olegas Eicher-Lorka, who began his scientific career nearly 50 years ago at the Chemistry Institute, was remembered as an exceptional specialist in his field, known not only for his skills in organic synthesis but also for his pioneering work in molecular theoretical modeling. His colleagues highlighted his curious nature and intense dedication to innovations, noting that he was one of the first at the Chemistry Institute to embrace computer technology and resolve technical issues within the team. In addition to his scientific contributions, Olegas was a national patriot who actively participated in the Sąjūdis movement, consistently sharing his ideas on necessary improvements and changes within the scientific community and beyond. His principled nature as a scientist was complemented by a frankness in expressing his opinions, earning him respect and admiration among peers. Olegas's sense of humor and unique personality were frequently mentioned in tributes, reflecting not only his professional achievements but also the warm and open relationships he fostered throughout his career. He is remembered fondly as a sincere and genuine individual whose impact on the field and his colleagues will not be forgotten.