Real competition can drive up testosterone, which boosts libido.

We're not very dangerous animals; we don't have a horn like a rhino or quills like a porcupine.

Kissing is not just kissing. It is a major escalation or de-escalation point in a powerful process of mate choice.

Overdone lipstick is a deterrent to men. It rubs off easily onto their skin and the edges of their shirts, so it discourages them from kissing, touching, and coming closer to you, which is what they really want to do!

[Women] tend to collect more pieces of data when they think, put them into more complex patterns, see more options and outcomes. They tend to be contextual, holistic thinkers.

We spend our lives trying to get along with people so we can keep our jobs, keep our marriages together, so that we can raise our kids properly.

I've always maintained that men were more romantic than women.