Human beings need pleasure the way they need vitamins.

Eternal vigilance is the price of sexual confidence.

[Pleasure is what suggested] which behaviors, emotions, social patterns and patterns of taste served us well during our evolutionary history. They were experienced as pleasures and encoded into our formative genetic codes . . . deep in the past, from about 100,000 years ago and beyond.

Economics and ethics are not mutually exclusive.

You can teach a bear to tango on a barrel but his enthusiasm and performance are limited and brief.

To those who think that the law of gravity interferes with their freedom, there is nothing to say.