how do we know what we know?

"How do we Know what we Know? What evidence do you have to support your claim?"
We know what we know because of what we have been told, and because of what we have experianced. We learn what we know from the people who teach it to us. From birth we are taught how to live and to be succsefull in life and society. We go to school where we learn facts and history. We also learn what we known through experiance. We can taste a certain type of food and know what it taste like, and know that the next time you taste it it will have the same taste (unless it has gone bad or something to that account). From experiance you know that when you touch ice it wil be cold, and whenever you touch it again it will still be cold. We know what we know because we rely on the fact that the reality that we see is what is real. Some people question whether "reality" itself is just a very complex dream. But by beliving in the facts thats are told to us when we are young and learning, and when we are experiancing life we belive in the facts that what we know. There is no possible way to prove if every single thing that we know is actually true, but human nature is to belive in the reality that is infront of them. Yes people do question whether the reality that they see is true. However they know what they know by excepting facts that are taught to them.