What is something you know to be true?

I know that the statement "Existence exists" is not a tautology, because

"Repetition of the same sense is tautology. Repetition of the same sound is tautophony." http://grammar.about.com/od/tz/g/tautolt%E2%80%A6 and "existence" and "exists" are not used in the same sense.

"Existence" is used in the sense of "all things that have being"; "exists" is used in the sense that being itself is an existent.

That I can lose $50 bucks at the race track faster than the horse I bet on???

0+0=0

This and other various math equations, for math is one of the few definite things in this world, everything else is altered by perspective/tainted with bias.

Cogito ergo sum. Which loosely translated from latin, means "If a man speaks, and there is no woman there to hear him, he is still wrong".

I know that I am answering this question with a response unless you disagree.

that i consider myself to be the luckiest girl alive having the wonderful family and friends that i have been blessed with.

I am hungry. So I think I will get some lunch.

There are things I am unsure of

I breathe

Change. It is constant.