Knowledge, with physics as its attractor, is my quest. My early research involved laser design and construction, holography and partially periodic optical instruments. My present interests are focused on some fundamental paradigms in physics: invariants and their relation to energy and momenta conservation; the classical and quantum nature of light as well as ultra-brief optical phenomena; algebraic systems appropriate to describe time-space and emergent phenomena. A balanced theoretical and experimental approach is desirable, so that these two categories are diluted into a continuum. A close and complementary duality between fundamental and applied science should also be pursued. I am deeply concerned that science contributes primarily to a better peaceful world and human eudaimonia.