Quote - I'm not sure I even WANT to understand Relativity. :) But I DO understand Gravity, in a practical way - if I drop a 10 lb lump of lead..well, I'm going to get a sore foot :)

 

The Special Theory isn't all that difficult to understand, even the math requires only basic calculus. You can even use the Special Theory to analyze the Twin Paradox. (The solution isn't because the moving twin undergoes acceleration, it is because the moving twin changes reference frames.)