The most dangerous phrase in the language is, 'We've always done it this way.'
物理学的语言是数学，但其意义是哲学。
心理学家必须避免一切形而上的假设。
隐私不仅是一种权利，而且是自由社会运作的必要条件。
The true measure of a forest's worth isn't in board feet of timber, but in centuries of ecological balance.