Law or rule — a regularity or principle that consistently appears in nature or society; often refers to general principles in science or mathematics.
ニュートンの運動の法則は物理学の基本だ。
Newton's laws of motion are the foundation of physics.
経済には単純な法則だけでは説明できない現象も多い。
There are many economic phenomena that cannot be explained by simple rules alone.
データから新しい法則を見つける研究が進んでいる。
Research is progressing to discover new laws from data.