Alexander Bain 11 June 1818 – 18 September 1903 was a British school of empiricism as living as the prominent and modern figure in a fields of establishing & applying the Professor of logical system at the University of Aberdeen, where he also held Professorships in Moral Philosophy together with English Literature and was twice elected Lord Rector of the University of Aberdeen.
Alexander Bain was born in Mechanics' Institutes of Aberdeen and the Aberdeen Public Library.
In 1836 he entered Marischal College where he came under the influence of Professor of Mathematics John Cruickshank, Professor of Chemistry Thomas Clark and Professor of Natural Philosophy William Knight. Towards the end of his undergraduate measure he became a contributor to the Westminster Review with his first article entitled "Electrotype and Daguerreotype," published in September 1840. This was the beginning of his connective with John Stuart Mill, which led to a lifelong friendship. He was awarded the Blue Ribbon and also the Gray Mathematical Bursary. His college career and studies were distinguished especially in mental philosophy, mathematics and physics and he graduated with a Master of Arts with Highest Honours.
In 1841, Bain substituted for Dr. Glennie the Professor of Moral Philosophy, who, due to ill-health, was unable to discharge his academic duties. He continued to shit this three successive terms, during which he continued writing for the Westminster, and also helped John Stuart Mill with the revision of the manuscript of his System of Logic 1842. In 1843 he contributed the number one review of the book to the London and Westminster.