Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

If you’ve ever hung around scientists, you’ve most likely at some point heard one of them say “the best explanation is the simplest one.” But is it? From the behavior of ants to the occurrence of ...

Want to live in a directed, resolute way? To always know why you’re doing what you’re doing? There’s a simple way to make your dreams come true: Go find the meaning of life! People who believe that ...

Let's play pretend for a moment. Pretend, if you can, that you've never heard about the idea of global warming before. Pretend you've never heard anyone else's opinions on the matter, including from ...

In the Nicomachean Ethics, Aristotle (d. 322 BCE) tries to discover what is "the supreme good for man," that is, what is the best way to lead our life and give it meaning. For Aristotle, a thing is ...

Over 2,500 years ago, Aristotle said, “Happiness is the meaning and purpose of life, the whole aim and end of human existence.” I think Aristotle got it right. Happiness is made up of two ingredients: ...

Jeanne Pinder is the founder and CEO of ClearHealthCosts. Previously she worked for The New York Times for 23 years as an editor, reporter and human resources executive. This article was originally ...

The bromide has it that a liberal is a person who won’t take his own side in an argument. To this we might add a corollary: there is a certain kind of conservative pundit who has never really had a ...