The interests and studies of Sam Segal include three subjects: botany and plant ecology, still life painting and philosophy.

Sam has tried, in all these disciplines, to serve humanity and its culture through teaching (at Grammer school, universities and at courses), through holding several positions on boards, by editing, and by research of patterns in the environment for nature conservation, advice on art and, with others, research on ways unto full awareness.

Sam Segal does no longer take part in research, appraisal and advice on flower- and still-life paintings and drawings. He has donated his documentation and library to the Rijksdienst voor Kunsthistorische Documentatie in The Hague, where it is available for study.