The sun’s universal rise and set inspires art and symbolizes life’s cycle. Water sustains life and regulates body functions. Gravity, a fundamental force, is described by general relativity. A triangle’s angles sum to 180°, with implications in mathematics. Time moves forward, the past only visitable in memories. Oxygen sustains life through respiration. Knowledge grows with experience. Change is inevitable. Actions have equal and opposite reactions. Nothing surpasses light speed in a vacuum. Continue reading 10 Things I Know to Be Absolutely Certain