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

Eternal vigilance is the price of sexual confidence.

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.

[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.

Human beings need pleasure the way they need vitamins.