Natural selection occurred due to environmental conditions, as well as human preferences.

Although often in the comfort range, it is the needs of the process that determine conditions, not human preference.

However, our selection of a particular unit is often driven by a human preference.

Some economists say such narrow calculations should be only part of the debate over human preferences, not the driving force in making a decision.

In other words, if you're going to introduce human preference you might as well go whole hog and put up a shopping mall.

"The computer is exact but can't decide human preference or taste," she said.

These changes play into human biological preferences seen across the world.

It is the needs of the process that determine conditions, not human preference.

This would also allow average utilitarianism to acknowledge the general human preference for life.