One of the most influential scientists in history, Isaac Newton laid the foundation for modern physics, invented the field of calculus, and developed the laws of motion and the theory of gravity. He was also a lifelong philosopher who asked and tried to answer many questions about the universe. Newton was committed to seeking out truths about the world we live in, and he concluded that regardless of the complexities of the universe, "Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things."