Gilbert Newton Lewis is one of the great chemists of the 20th century. He is considered as the founder of the modern chemical thermodynamics according to his major contribution in developing the thermodynamic theories and applying them to real chemical systems, and his discovery of the covalent bond, and with that concept and that of the electron pairs, the modern theories of chemical bonding were developed. His concepts of acids and bases are another fundamental contribution to the chemistry. Lewis was nominated 41 times for the Nobel Prize in Chemistry without avail, as one of the many controversial inclusions and exclusions in the history of Nobel laureate selections. This paper reviews Lewis's life experiences and scientific achievements, especially, his scientific explorations.

Gilbert Newton Lewis  /  chemical thermodynamics  /  covalent bond  /  the electronic theory of acids and bases