to see, to know

Lying on his back, he gazed up now into the high, cloudless sky. "Do I not know that that is infinite space, and that it is not a round arch? But, however I screw up my eyes and strain my sight, I cannot see it not round and not bounded, and in spite of my knowing about infinite space, I am incontestably right when I see a solid blue dome, and more right than when I strain my eyes to see beyond it." ~Anna Karenina by Leo Tolstoy

What our eyes see and our intellect concludes isn't always truth, the whole truth. But our experience matters.

Behold! in the creation of the heavens and the earth; in the alternation of the night and the day; in the sailing of the ships through the ocean for the profit of mankind; in the rain which Allah sends down from the skies, and the life which He gives therewith to an earth that is dead; in the beasts of all kinds that he scatters through the earth; in the change of the winds, and the clouds which they trail like their slaves between the sky and the earth; --(Here) indeed are Signs for a people that are wise. ~Holy Quran 2:164