"My name is Ozymandias, King of Kings,
Look on my Works ye Mighty, and despair!
Nothing beside remains. Round the decay
Of that colossal Wreck, boundless and bare
The lone and level sands stretch far away."
--Percy Bysshe Shelley: Ozymandias
By all indications, the pyramids were built as part of a religious belief system. The Pharaohs believed they would help them get to the other side or something. The pyramids were also largely built with slave labor — and to the best of anyone’s knowledge didn’t require a lot of motivational pep talks.