Anthony Kennedy,
Price Waterhouse v. Hopkins — Dissenting Opinion
“ No one contends, however, that sex must be the sole cause of a decision before there is a Title VII violation. This is a separate question from whether consideration of sex must be a cause of the decision. Under the accepted approach to causation that I have discussed, sex is a cause for the employment decision whenever, either by itself or in combination with other factors it made a difference to the decision. Discrimination need not be the sole cause in order for liability to arise, but merely a necessary element of the set of factors that caused the decision, i.e., a but-for cause. ”
