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.

(Now I get it!)

Albert Einstein

The hardest thing in the world to understand is the income tax.

(I was at first skeptical that Einstein actually said this, but there it is on a page entitled "Tax Quotes" on the IRS website.)

They didn't have TurboTax in Einstein's day