If you spot a few of these traits in someone you know (or in yourself!), there’s a good chance there’s more intelligence beneath the surface than meets the eye. Remember: being “smart” isn ...

Healthline writer Crystal Raypole said, “A well-developed sense of self signals a high level of intelligence, since a strong self-identity typically means you feel secure in who you are, know where ...

Have you ever had that experience when you're getting to know someone and you suddenly ... There's one simple behavior that reveals a person's level of intelligence, according to a philosopher.