The St Thomas More Society, together with the Maronite Lawyers Guild, hosted a lecture on Family and Work in 21st Century Australia by Joe de Bruyn, National President, Shop, Distributive & Allied Employees’ Association (SDA), and Chairman of Campion College.The lecture took place on Monday, 17 August 2015at the College of Law, St James Centre.The Shop, Distributive & Allied Employees Association (SDA), is Australia's largest union with some 230,000 members. Campion College is Australia’s first and only liberal arts College.Joe has recently retired as Senior Vice President of the Australian Council of Trade Unions (ACTU), and as a member of the National Executive of the Australian Labor Party (ALP).At the present time, there is a debate in Australia as to the nature of marriage, and the rights of children and spouses.Classical DefinitionA classical legal definition of marriage referred to in Quick and Garran’s The Annotated Constitution of the Australian Commonwealth (1901) is (1) a voluntary union, (2) for life (3) of one man and one woman, (4) to the exclusion of all others. Dialogue:The Maronite Lawyers Guild and the St Thomas More Society are committed to a dialogue in which the reasons for the classical understanding of marriage are clearly expressed on the basis of respect for all, including both spouses and children.