[weikel]

You don't but if you personally are self aware then you can be sure of the existence of your consciousness in some form 100% without resorting to axioms or fate. You cannot be certain about the nature of your existence or reality but you can be certain your consciousness exist on some level.

[thinktwice]

You cannot be certain about the nature of your existence or reality

My dog might have that problem, but I don't.

If your mind has no purpose, where does that place your soul?

[weikel]

typo btw fate=faith

[discostu]

Right, that's what Descartes was playing with, eventually you do know, but you've got to follow the logic train.

[Hank Kerchief]

You cannot be certain about the nature of your existence or reality...

Every statment has meaning only if the words it is comprised of have meaning. You cannot make the above statement if you do not already know what the words, certain, nature, existense, and reality mean. If you do not know what they mean, the above says nothing. At is stands, it is a self-contradiction.

Hank