That sensory input and beliefs do not constitute knowledge
Descartes uses this statement to prove that he exists: "I think, therefore I am." He uses this as proof because him thinking shows he is capable of having a free will and keeping his own opinions.
Descartes hoped to prove with that method of doubt that inconsistencies in research can be proven. By doubting scientific findings, people begin to question it which leads to more research.
that truth comes from observation and experience
No. Any person trained in logic will tell you that 'you cannot prove a negative'. If you want to disprove the existence of fairies you first attempt to try and prove their existence. And the best you can do is to fail to prove it. The option to prove it always exists.
Rene Descartes philosophy of logic and rationality led him to come to the conclusion that God must exist. Without his existence, there is not explanation for the universe.
He started from the thought that if you doubt everything, then you have to prove that everything exists and that man exists. If you start from nothing as he did, then you have to admit that there is something. I am, therefore I exist.
He gave that name to himself in an attempt to prove to Vin that he was once human.
Yes
Benjamin Franklin was the first person to prove that lightning is a form of electricity.
Read Ch. 1 of Howard Zinn's A People's History Of The United States.
Prove it you first
Benjamin Franklin was the first person to prove that lightning is a form of electricity.