Nicholas Zammit (1815–1899) was a Maltese medical doctor, an architect, an artistic designer, and a major philosopher.
His area of specialisation in philosophy was chiefly ethics.
Throughout his philosophical career he did not adhere to just one intellectual position.
Roughly two-thirds into his life, Zammit passed from a liberal way of thinking to a conservative one.
This does not mean that there are no carry-overs, developments, or continuations between the two phases, or that Zammit himself acknowledged such a division.
Notwithstanding, the development suggests that an analysis of Zammit's works will reveal different attitudes, dispositions, emphasis, and conclusions of the two periods.