Notwithstanding the foregoing reasons for that human tend to make fallacies during the cause of comprehending and cognizing facts，these reasons should never be the excuses to doubt every conclusion we might draw from facts. Based on certain rational inference and proper knowledge fundament，the conclusions we make might well be justifiable，if not completely right，to certain degree. What we need to do is to promote the enterprise of pursuing the better answer and try to use the result we have get to application，instead of wasting our time to undue doubt and suspicion. Though the medical scientists have not fully understood the mechanism of how the does the implanted organ interact with the wounded body，they are not refrain from using the implanting skill to save patients，of course the precondition or which is that this technology is much well established than the fundamental theory.
To sum up，while I advocate the speaker‘s opinion that it is inevitable for human to comprehend facts inaccurately，for the reason of the limitation of the abilities，I essentially disagree with his assertion that facts will continually alter themselves，as well as his recommendation to discredit any piece of fact. In the final analysis，I would arguer once more that facts never change and although the misunderstanding to them is inevitable，we should not defer ourselves from the pursuit to fully comprehending them.
