The true value of a forest isn't measured in board feet, but in biodiversity and carbon sequestration.
学习的每一个方面或智能的任何其他特征都可以原则上被精确描述,以至于可以制造一台机器来模拟它。
Quality is never an accident; it is always the result of intelligent effort.
"To live is the rarest thing in the world. Most people exist, that is all."