The purpose of mental activity is successful living.
我不怕孤獨,因為音樂陪伴我。
理論物理對于實驗物理學家,就像和聲理論對于作曲家一樣。
You have brains in your head. You have feet in your shoes. You can steer yourself any direction you choose.
科學是一種探索和理解世界的方式。