As structural engineers, we are constantly employing the skills we have acquired through education and experience to use materials to proportion structures to safely resist forces and loading which are imposed on them. The structural design is a comprehensive process and while using sophisticated analysis and risk-based approach aimed at producing efficient structural systems, we do not lose sight of other non-mathematical factors such as budgetary resources, material availability, environmental impact, sustainability and ease of construction.  We practice engineering to serve the communities we live in, work and play in to last for generations going forward.