When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a m... — Albert Einstein

When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute and it's longer than any hour. That's relativity.

Author: Albert Einstein

Insight: Time isn't actually passing differently—your brain just stops paying attention when you're happy. This is why scrolling feels instant but waiting for an important text feels eternal. Einstein just proved that boredom is the ultimate physics experiment.

Source: Albert Einstein: A Biography by Albrecht Folsing, p. 421