science is a rigorous, systematic goal to build and organize knowledge
ultimately, the purpose of science is to understand things
science is classified into branches, but as you can predict, sorting all knowledge into different categories is hard
formal sciences
formal sciences study abstract logical things described by formal systems
for example, logic, mathematics, computer science, and game theory
see formal sciences
natural sciences
natural sciences study the knowledge from observing the physical world
for example, biology, chemistry and physics
see natural sciences
humanities
humanities study human society and culture
for example, philosophy, religion, and fine art
see guide to humanities